18816720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1$

素因数の和:229

約数の個数: 160

約数和(自身を含む): 64912512

約数和(自身を除く): 46095792

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 37, 39, 40, 48, 52, 60, 65, 74, 78, 80, 104, 111, 120, 130, 148, 156, 163, 185, 195, 208, 222, 240, 260, 296, 312, 326, 370, 390, 444, 481, 489, 520, 555, 592, 624, 652, 740, 780, 815, 888, 962, 978, 1040, 1110, 1304, 1443, 1480, 1560, 1630, 1776, 1924, 1956, 2119, 2220, 2405, 2445, 2608, 2886, 2960, 3120, 3260, 3848, 3912, 4238, 4440, 4810, 4890, 5772, 6031, 6357, 6520, 7215, 7696, 7824, 8476, 8880, 9620, 9780, 10595, 11544, 12062, 12714, 13040, 14430, 16952, 18093, 19240, 19560, 21190, 23088, 24124, 25428, 28860, 30155, 31785, 33904, 36186, 38480, 39120, 42380, 48248, 50856, 57720, 60310, 63570, 72372, 78403, 84760, 90465, 96496, 101712, 115440, 120620, 127140, 144744, 156806, 169520, 180930, 235209, 241240, 254280, 289488, 313612, 361860, 392015, 470418, 482480, 508560, 627224, 723720, 784030, 940836, 1176045, 1254448, 1447440, 1568060, 1881672, 2352090, 3136120, 3763344, 4704180, 6272240, 9408360, 18816720]

約数ペア:

[(1, 18816720), (2, 9408360), (3, 6272240), (4, 4704180), (5, 3763344), (6, 3136120), (8, 2352090), (10, 1881672), (12, 1568060), (13, 1447440), (15, 1254448), (16, 1176045), (20, 940836), (24, 784030), (26, 723720), (30, 627224), (37, 508560), (39, 482480), (40, 470418), (48, 392015), (52, 361860), (60, 313612), (65, 289488), (74, 254280), (78, 241240), (80, 235209), (104, 180930), (111, 169520), (120, 156806), (130, 144744), (148, 127140), (156, 120620), (163, 115440), (185, 101712), (195, 96496), (208, 90465), (222, 84760), (240, 78403), (260, 72372), (296, 63570), (312, 60310), (326, 57720), (370, 50856), (390, 48248), (444, 42380), (481, 39120), (489, 38480), (520, 36186), (555, 33904), (592, 31785), (624, 30155), (652, 28860), (740, 25428), (780, 24124), (815, 23088), (888, 21190), (962, 19560), (978, 19240), (1040, 18093), (1110, 16952), (1304, 14430), (1443, 13040), (1480, 12714), (1560, 12062), (1630, 11544), (1776, 10595), (1924, 9780), (1956, 9620), (2119, 8880), (2220, 8476), (2405, 7824), (2445, 7696), (2608, 7215), (2886, 6520), (2960, 6357), (3120, 6031), (3260, 5772), (3848, 4890), (3912, 4810), (4238, 4440)]