640350152

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{8423}}^1$

素因数の和:8502

約数の個数: 64

約数和(自身を含む): 1401079680

約数和(自身を除く): 760729528

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 43, 52, 68, 86, 104, 136, 172, 221, 344, 442, 559, 731, 884, 1118, 1462, 1768, 2236, 2924, 4472, 5848, 8423, 9503, 16846, 19006, 33692, 38012, 67384, 76024, 109499, 143191, 218998, 286382, 362189, 437996, 572764, 724378, 875992, 1145528, 1448756, 1861483, 2897512, 3722966, 4708457, 6157213, 7445932, 9416914, 12314426, 14891864, 18833828, 24628852, 37667656, 49257704, 80043769, 160087538, 320175076, 640350152]

約数ペア:

[(1, 640350152), (2, 320175076), (4, 160087538), (8, 80043769), (13, 49257704), (17, 37667656), (26, 24628852), (34, 18833828), (43, 14891864), (52, 12314426), (68, 9416914), (86, 7445932), (104, 6157213), (136, 4708457), (172, 3722966), (221, 2897512), (344, 1861483), (442, 1448756), (559, 1145528), (731, 875992), (884, 724378), (1118, 572764), (1462, 437996), (1768, 362189), (2236, 286382), (2924, 218998), (4472, 143191), (5848, 109499), (8423, 76024), (9503, 67384), (16846, 38012), (19006, 33692)]