64878970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{947}}^1$

素因数の和:1015

約数の個数: 64

約数和(自身を含む): 137604096

約数和(自身を除く): 72725126

約数列:

[1, 2, 5, 10, 13, 17, 26, 31, 34, 62, 65, 85, 130, 155, 170, 221, 310, 403, 442, 527, 806, 947, 1054, 1105, 1894, 2015, 2210, 2635, 4030, 4735, 5270, 6851, 9470, 12311, 13702, 16099, 24622, 29357, 32198, 34255, 58714, 61555, 68510, 80495, 123110, 146785, 160990, 209287, 293570, 381641, 418574, 499069, 763282, 998138, 1046435, 1908205, 2092870, 2495345, 3816410, 4990690, 6487897, 12975794, 32439485, 64878970]

約数ペア:

[(1, 64878970), (2, 32439485), (5, 12975794), (10, 6487897), (13, 4990690), (17, 3816410), (26, 2495345), (31, 2092870), (34, 1908205), (62, 1046435), (65, 998138), (85, 763282), (130, 499069), (155, 418574), (170, 381641), (221, 293570), (310, 209287), (403, 160990), (442, 146785), (527, 123110), (806, 80495), (947, 68510), (1054, 61555), (1105, 58714), (1894, 34255), (2015, 32198), (2210, 29357), (2635, 24622), (4030, 16099), (4735, 13702), (5270, 12311), (6851, 9470)]