1989486720

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^2$

素因数の和:364

約数の個数: 288

約数和(自身を含む): 7444071180

約数和(自身を除く): 5454584460

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 163, 180, 192, 195, 208, 234, 240, 260, 288, 312, 320, 326, 360, 384, 390, 416, 468, 480, 489, 520, 576, 585, 624, 640, 652, 720, 780, 815, 832, 936, 960, 978, 1040, 1152, 1170, 1248, 1304, 1440, 1467, 1560, 1630, 1664, 1872, 1920, 1956, 2080, 2119, 2340, 2445, 2496, 2608, 2880, 2934, 3120, 3260, 3744, 3912, 4160, 4238, 4680, 4890, 4992, 5216, 5760, 5868, 6240, 6357, 6520, 7335, 7488, 7824, 8320, 8476, 9360, 9780, 10432, 10595, 11736, 12480, 12714, 13040, 14670, 14976, 15648, 16952, 18720, 19071, 19560, 20864, 21190, 23472, 24960, 25428, 26080, 26569, 29340, 31296, 31785, 33904, 37440, 38142, 39120, 42380, 46944, 50856, 52160, 53138, 58680, 62592, 63570, 67808, 74880, 76284, 78240, 79707, 84760, 93888, 95355, 101712, 104320, 106276, 117360, 127140, 132845, 135616, 152568, 156480, 159414, 169520, 187776, 190710, 203424, 212552, 234720, 239121, 254280, 265690, 271232, 305136, 312960, 318828, 339040, 345397, 381420, 398535, 406848, 425104, 469440, 478242, 508560, 531380, 610272, 637656, 678080, 690794, 762840, 797070, 813696, 850208, 938880, 956484, 1017120, 1036191, 1062760, 1195605, 1220544, 1275312, 1356160, 1381588, 1525680, 1594140, 1700416, 1726985, 1912968, 2034240, 2072382, 2125520, 2391210, 2441088, 2550624, 2763176, 3051360, 3108573, 3188280, 3400832, 3453970, 3825936, 4068480, 4144764, 4251040, 4782420, 5101248, 5180955, 5526352, 6102720, 6217146, 6376560, 6907940, 7651872, 8289528, 8502080, 9564840, 10202496, 10361910, 11052704, 12205440, 12434292, 12753120, 13815880, 15303744, 15542865, 16579056, 17004160, 19129680, 20723820, 22105408, 24868584, 25506240, 27631760, 30607488, 31085730, 33158112, 38259360, 41447640, 44210816, 49737168, 51012480, 55263520, 62171460, 66316224, 76518720, 82895280, 99474336, 110527040, 124342920, 132632448, 153037440, 165790560, 198948672, 221054080, 248685840, 331581120, 397897344, 497371680, 663162240, 994743360, 1989486720]

約数ペア:

[(1, 1989486720), (2, 994743360), (3, 663162240), (4, 497371680), (5, 397897344), (6, 331581120), (8, 248685840), (9, 221054080), (10, 198948672), (12, 165790560), (13, 153037440), (15, 132632448), (16, 124342920), (18, 110527040), (20, 99474336), (24, 82895280), (26, 76518720), (30, 66316224), (32, 62171460), (36, 55263520), (39, 51012480), (40, 49737168), (45, 44210816), (48, 41447640), (52, 38259360), (60, 33158112), (64, 31085730), (65, 30607488), (72, 27631760), (78, 25506240), (80, 24868584), (90, 22105408), (96, 20723820), (104, 19129680), (117, 17004160), (120, 16579056), (128, 15542865), (130, 15303744), (144, 13815880), (156, 12753120), (160, 12434292), (163, 12205440), (180, 11052704), (192, 10361910), (195, 10202496), (208, 9564840), (234, 8502080), (240, 8289528), (260, 7651872), (288, 6907940), (312, 6376560), (320, 6217146), (326, 6102720), (360, 5526352), (384, 5180955), (390, 5101248), (416, 4782420), (468, 4251040), (480, 4144764), (489, 4068480), (520, 3825936), (576, 3453970), (585, 3400832), (624, 3188280), (640, 3108573), (652, 3051360), (720, 2763176), (780, 2550624), (815, 2441088), (832, 2391210), (936, 2125520), (960, 2072382), (978, 2034240), (1040, 1912968), (1152, 1726985), (1170, 1700416), (1248, 1594140), (1304, 1525680), (1440, 1381588), (1467, 1356160), (1560, 1275312), (1630, 1220544), (1664, 1195605), (1872, 1062760), (1920, 1036191), (1956, 1017120), (2080, 956484), (2119, 938880), (2340, 850208), (2445, 813696), (2496, 797070), (2608, 762840), (2880, 690794), (2934, 678080), (3120, 637656), (3260, 610272), (3744, 531380), (3912, 508560), (4160, 478242), (4238, 469440), (4680, 425104), (4890, 406848), (4992, 398535), (5216, 381420), (5760, 345397), (5868, 339040), (6240, 318828), (6357, 312960), (6520, 305136), (7335, 271232), (7488, 265690), (7824, 254280), (8320, 239121), (8476, 234720), (9360, 212552), (9780, 203424), (10432, 190710), (10595, 187776), (11736, 169520), (12480, 159414), (12714, 156480), (13040, 152568), (14670, 135616), (14976, 132845), (15648, 127140), (16952, 117360), (18720, 106276), (19071, 104320), (19560, 101712), (20864, 95355), (21190, 93888), (23472, 84760), (24960, 79707), (25428, 78240), (26080, 76284), (26569, 74880), (29340, 67808), (31296, 63570), (31785, 62592), (33904, 58680), (37440, 53138), (38142, 52160), (39120, 50856), (42380, 46944)]