28155980

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 60963840

約数和(自身を除く): 32807860

約数列:

[1, 2, 4, 5, 10, 20, 59, 107, 118, 214, 223, 236, 295, 428, 446, 535, 590, 892, 1070, 1115, 1180, 2140, 2230, 4460, 6313, 12626, 13157, 23861, 25252, 26314, 31565, 47722, 52628, 63130, 65785, 95444, 119305, 126260, 131570, 238610, 263140, 477220, 1407799, 2815598, 5631196, 7038995, 14077990, 28155980]

約数ペア:

[(1, 28155980), (2, 14077990), (4, 7038995), (5, 5631196), (10, 2815598), (20, 1407799), (59, 477220), (107, 263140), (118, 238610), (214, 131570), (223, 126260), (236, 119305), (295, 95444), (428, 65785), (446, 63130), (535, 52628), (590, 47722), (892, 31565), (1070, 26314), (1115, 25252), (1180, 23861), (2140, 13157), (2230, 12626), (4460, 6313)]