78649320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1013}}^1$

素因数の和:1674

約数の個数: 64

約数和(自身を含む): 236545920

約数和(自身を除く): 157896600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 647, 1013, 1294, 1941, 2026, 2588, 3039, 3235, 3882, 4052, 5065, 5176, 6078, 6470, 7764, 8104, 9705, 10130, 12156, 12940, 15195, 15528, 19410, 20260, 24312, 25880, 30390, 38820, 40520, 60780, 77640, 121560, 655411, 1310822, 1966233, 2621644, 3277055, 3932466, 5243288, 6554110, 7864932, 9831165, 13108220, 15729864, 19662330, 26216440, 39324660, 78649320]

約数ペア:

[(1, 78649320), (2, 39324660), (3, 26216440), (4, 19662330), (5, 15729864), (6, 13108220), (8, 9831165), (10, 7864932), (12, 6554110), (15, 5243288), (20, 3932466), (24, 3277055), (30, 2621644), (40, 1966233), (60, 1310822), (120, 655411), (647, 121560), (1013, 77640), (1294, 60780), (1941, 40520), (2026, 38820), (2588, 30390), (3039, 25880), (3235, 24312), (3882, 20260), (4052, 19410), (5065, 15528), (5176, 15195), (6078, 12940), (6470, 12156), (7764, 10130), (8104, 9705)]