31885490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{947}}^1$

素因数の和:1011

約数の個数: 64

約数和(自身を含む): 72624384

約数和(自身を除く): 40738894

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 37, 65, 70, 74, 91, 130, 182, 185, 259, 370, 455, 481, 518, 910, 947, 962, 1295, 1894, 2405, 2590, 3367, 4735, 4810, 6629, 6734, 9470, 12311, 13258, 16835, 24622, 33145, 33670, 35039, 61555, 66290, 70078, 86177, 123110, 172354, 175195, 245273, 350390, 430885, 455507, 490546, 861770, 911014, 1226365, 2277535, 2452730, 3188549, 4555070, 6377098, 15942745, 31885490]

約数ペア:

[(1, 31885490), (2, 15942745), (5, 6377098), (7, 4555070), (10, 3188549), (13, 2452730), (14, 2277535), (26, 1226365), (35, 911014), (37, 861770), (65, 490546), (70, 455507), (74, 430885), (91, 350390), (130, 245273), (182, 175195), (185, 172354), (259, 123110), (370, 86177), (455, 70078), (481, 66290), (518, 61555), (910, 35039), (947, 33670), (962, 33145), (1295, 24622), (1894, 16835), (2405, 13258), (2590, 12311), (3367, 9470), (4735, 6734), (4810, 6629)]