31530720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:225

約数の個数: 192

約数和(自身を含む): 111089664

約数和(自身を除く): 79558944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 31, 32, 39, 40, 48, 52, 60, 62, 65, 78, 80, 93, 96, 104, 120, 124, 130, 155, 156, 160, 163, 186, 195, 208, 240, 248, 260, 310, 312, 326, 372, 390, 403, 416, 465, 480, 489, 496, 520, 620, 624, 652, 744, 780, 806, 815, 930, 978, 992, 1040, 1209, 1240, 1248, 1304, 1488, 1560, 1612, 1630, 1860, 1956, 2015, 2080, 2119, 2418, 2445, 2480, 2608, 2976, 3120, 3224, 3260, 3720, 3912, 4030, 4238, 4836, 4890, 4960, 5053, 5216, 6045, 6240, 6357, 6448, 6520, 7440, 7824, 8060, 8476, 9672, 9780, 10106, 10595, 12090, 12714, 12896, 13040, 14880, 15159, 15648, 16120, 16952, 19344, 19560, 20212, 21190, 24180, 25265, 25428, 26080, 30318, 31785, 32240, 33904, 38688, 39120, 40424, 42380, 48360, 50530, 50856, 60636, 63570, 64480, 65689, 67808, 75795, 78240, 80848, 84760, 96720, 101060, 101712, 121272, 127140, 131378, 151590, 161696, 169520, 193440, 197067, 202120, 203424, 242544, 254280, 262756, 303180, 328445, 339040, 394134, 404240, 485088, 508560, 525512, 606360, 656890, 788268, 808480, 985335, 1017120, 1051024, 1212720, 1313780, 1576536, 1970670, 2102048, 2425440, 2627560, 3153072, 3941340, 5255120, 6306144, 7882680, 10510240, 15765360, 31530720]

約数ペア:

[(1, 31530720), (2, 15765360), (3, 10510240), (4, 7882680), (5, 6306144), (6, 5255120), (8, 3941340), (10, 3153072), (12, 2627560), (13, 2425440), (15, 2102048), (16, 1970670), (20, 1576536), (24, 1313780), (26, 1212720), (30, 1051024), (31, 1017120), (32, 985335), (39, 808480), (40, 788268), (48, 656890), (52, 606360), (60, 525512), (62, 508560), (65, 485088), (78, 404240), (80, 394134), (93, 339040), (96, 328445), (104, 303180), (120, 262756), (124, 254280), (130, 242544), (155, 203424), (156, 202120), (160, 197067), (163, 193440), (186, 169520), (195, 161696), (208, 151590), (240, 131378), (248, 127140), (260, 121272), (310, 101712), (312, 101060), (326, 96720), (372, 84760), (390, 80848), (403, 78240), (416, 75795), (465, 67808), (480, 65689), (489, 64480), (496, 63570), (520, 60636), (620, 50856), (624, 50530), (652, 48360), (744, 42380), (780, 40424), (806, 39120), (815, 38688), (930, 33904), (978, 32240), (992, 31785), (1040, 30318), (1209, 26080), (1240, 25428), (1248, 25265), (1304, 24180), (1488, 21190), (1560, 20212), (1612, 19560), (1630, 19344), (1860, 16952), (1956, 16120), (2015, 15648), (2080, 15159), (2119, 14880), (2418, 13040), (2445, 12896), (2480, 12714), (2608, 12090), (2976, 10595), (3120, 10106), (3224, 9780), (3260, 9672), (3720, 8476), (3912, 8060), (4030, 7824), (4238, 7440), (4836, 6520), (4890, 6448), (4960, 6357), (5053, 6240), (5216, 6045)]