90834560

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1999}}^1$

素因数の和:2089

約数の個数: 64

約数和(自身を含む): 220320000

約数和(自身を除く): 129485440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 284, 320, 355, 568, 640, 710, 1136, 1420, 1999, 2272, 2840, 3998, 4544, 5680, 7996, 9088, 9995, 11360, 15992, 19990, 22720, 31984, 39980, 45440, 63968, 79960, 127936, 141929, 159920, 255872, 283858, 319840, 567716, 639680, 709645, 1135432, 1279360, 1419290, 2270864, 2838580, 4541728, 5677160, 9083456, 11354320, 18166912, 22708640, 45417280, 90834560]

約数ペア:

[(1, 90834560), (2, 45417280), (4, 22708640), (5, 18166912), (8, 11354320), (10, 9083456), (16, 5677160), (20, 4541728), (32, 2838580), (40, 2270864), (64, 1419290), (71, 1279360), (80, 1135432), (128, 709645), (142, 639680), (160, 567716), (284, 319840), (320, 283858), (355, 255872), (568, 159920), (640, 141929), (710, 127936), (1136, 79960), (1420, 63968), (1999, 45440), (2272, 39980), (2840, 31984), (3998, 22720), (4544, 19990), (5680, 15992), (7996, 11360), (9088, 9995)]