664653795

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2557}}^1$

素因数の和:2652

約数の個数: 64

約数和(自身を含む): 1210159104

約数和(自身を除く): 545505309

約数列:

[1, 3, 5, 13, 15, 31, 39, 43, 65, 93, 129, 155, 195, 215, 403, 465, 559, 645, 1209, 1333, 1677, 2015, 2557, 2795, 3999, 6045, 6665, 7671, 8385, 12785, 17329, 19995, 33241, 38355, 51987, 79267, 86645, 99723, 109951, 166205, 237801, 259935, 329853, 396335, 498615, 549755, 1030471, 1189005, 1429363, 1649265, 3091413, 3408481, 4288089, 5152355, 7146815, 10225443, 15457065, 17042405, 21440445, 44310253, 51127215, 132930759, 221551265, 664653795]

約数ペア:

[(1, 664653795), (3, 221551265), (5, 132930759), (13, 51127215), (15, 44310253), (31, 21440445), (39, 17042405), (43, 15457065), (65, 10225443), (93, 7146815), (129, 5152355), (155, 4288089), (195, 3408481), (215, 3091413), (403, 1649265), (465, 1429363), (559, 1189005), (645, 1030471), (1209, 549755), (1333, 498615), (1677, 396335), (2015, 329853), (2557, 259935), (2795, 237801), (3999, 166205), (6045, 109951), (6665, 99723), (7671, 86645), (8385, 79267), (12785, 51987), (17329, 38355), (19995, 33241)]