90145240

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{12451}}^1$

素因数の和:12643

約数の個数: 32

約数和(自身を含む): 203963760

約数和(自身を除く): 113818520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 12451, 24902, 49804, 62255, 99608, 124510, 249020, 498040, 2253631, 4507262, 9014524, 11268155, 18029048, 22536310, 45072620, 90145240]

約数ペア:

[(1, 90145240), (2, 45072620), (4, 22536310), (5, 18029048), (8, 11268155), (10, 9014524), (20, 4507262), (40, 2253631), (181, 498040), (362, 249020), (724, 124510), (905, 99608), (1448, 62255), (1810, 49804), (3620, 24902), (7240, 12451)]