20328035

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1039}}^1$

素因数の和:1107

約数の個数: 32

約数和(自身を含む): 30750720

約数和(自身を除く): 10422685

約数列:

[1, 5, 7, 13, 35, 43, 65, 91, 215, 301, 455, 559, 1039, 1505, 2795, 3913, 5195, 7273, 13507, 19565, 36365, 44677, 67535, 94549, 223385, 312739, 472745, 580801, 1563695, 2904005, 4065607, 20328035]

約数ペア:

[(1, 20328035), (5, 4065607), (7, 2904005), (13, 1563695), (35, 580801), (43, 472745), (65, 312739), (91, 223385), (215, 94549), (301, 67535), (455, 44677), (559, 36365), (1039, 19565), (1505, 13507), (2795, 7273), (3913, 5195)]