90327680

素因数分解:

$2^7\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1249}}^1$

素因数の和:1381

約数の個数: 64

約数和(自身を含む): 218025000

約数和(自身を除く): 127697320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 128, 160, 226, 320, 452, 565, 640, 904, 1130, 1249, 1808, 2260, 2498, 3616, 4520, 4996, 6245, 7232, 9040, 9992, 12490, 14464, 18080, 19984, 24980, 36160, 39968, 49960, 72320, 79936, 99920, 141137, 159872, 199840, 282274, 399680, 564548, 705685, 799360, 1129096, 1411370, 2258192, 2822740, 4516384, 5645480, 9032768, 11290960, 18065536, 22581920, 45163840, 90327680]

約数ペア:

[(1, 90327680), (2, 45163840), (4, 22581920), (5, 18065536), (8, 11290960), (10, 9032768), (16, 5645480), (20, 4516384), (32, 2822740), (40, 2258192), (64, 1411370), (80, 1129096), (113, 799360), (128, 705685), (160, 564548), (226, 399680), (320, 282274), (452, 199840), (565, 159872), (640, 141137), (904, 99920), (1130, 79936), (1249, 72320), (1808, 49960), (2260, 39968), (2498, 36160), (3616, 24980), (4520, 19984), (4996, 18080), (6245, 14464), (7232, 12490), (9040, 9992)]