128487680

素因数分解:

$2^8\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2713}}^1$

素因数の和:2771

約数の個数: 72

約数和(自身を含む): 316202712

約数和(自身を除く): 187715032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 256, 296, 320, 370, 592, 640, 740, 1184, 1280, 1480, 2368, 2713, 2960, 4736, 5426, 5920, 9472, 10852, 11840, 13565, 21704, 23680, 27130, 43408, 47360, 54260, 86816, 100381, 108520, 173632, 200762, 217040, 347264, 401524, 434080, 501905, 694528, 803048, 868160, 1003810, 1606096, 1736320, 2007620, 3212192, 3472640, 4015240, 6424384, 8030480, 12848768, 16060960, 25697536, 32121920, 64243840, 128487680]

約数ペア:

[(1, 128487680), (2, 64243840), (4, 32121920), (5, 25697536), (8, 16060960), (10, 12848768), (16, 8030480), (20, 6424384), (32, 4015240), (37, 3472640), (40, 3212192), (64, 2007620), (74, 1736320), (80, 1606096), (128, 1003810), (148, 868160), (160, 803048), (185, 694528), (256, 501905), (296, 434080), (320, 401524), (370, 347264), (592, 217040), (640, 200762), (740, 173632), (1184, 108520), (1280, 100381), (1480, 86816), (2368, 54260), (2713, 47360), (2960, 43408), (4736, 27130), (5426, 23680), (5920, 21704), (9472, 13565), (10852, 11840)]