90999385

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{523}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 122238720

約数和(自身を除く): 31239335

約数列:

[1, 5, 17, 23, 85, 89, 115, 391, 445, 523, 1513, 1955, 2047, 2615, 7565, 8891, 10235, 12029, 34799, 44455, 46547, 60145, 173995, 204493, 232735, 791299, 1022465, 1070581, 3956495, 5352905, 18199877, 90999385]

約数ペア:

[(1, 90999385), (5, 18199877), (17, 5352905), (23, 3956495), (85, 1070581), (89, 1022465), (115, 791299), (391, 232735), (445, 204493), (523, 173995), (1513, 60145), (1955, 46547), (2047, 44455), (2615, 34799), (7565, 12029), (8891, 10235)]