89982560

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^2$

素因数の和:264

約数の個数: 72

約数和(自身を含む): 218027376

約数和(自身を除く): 128044816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 89, 142, 160, 178, 284, 355, 356, 445, 568, 710, 712, 890, 1136, 1420, 1424, 1780, 2272, 2840, 2848, 3560, 5680, 6319, 7120, 7921, 11360, 12638, 14240, 15842, 25276, 31595, 31684, 39605, 50552, 63190, 63368, 79210, 101104, 126380, 126736, 158420, 202208, 252760, 253472, 316840, 505520, 562391, 633680, 1011040, 1124782, 1267360, 2249564, 2811955, 4499128, 5623910, 8998256, 11247820, 17996512, 22495640, 44991280, 89982560]

約数ペア:

[(1, 89982560), (2, 44991280), (4, 22495640), (5, 17996512), (8, 11247820), (10, 8998256), (16, 5623910), (20, 4499128), (32, 2811955), (40, 2249564), (71, 1267360), (80, 1124782), (89, 1011040), (142, 633680), (160, 562391), (178, 505520), (284, 316840), (355, 253472), (356, 252760), (445, 202208), (568, 158420), (710, 126736), (712, 126380), (890, 101104), (1136, 79210), (1420, 63368), (1424, 63190), (1780, 50552), (2272, 39605), (2840, 31684), (2848, 31595), (3560, 25276), (5680, 15842), (6319, 14240), (7120, 12638), (7921, 11360)]