623956220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{12739}}^1$

素因数の和:12858

約数の個数: 48

約数和(自身を含む): 1369804800

約数和(自身を除く): 745848580

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 79, 124, 155, 158, 310, 316, 395, 620, 790, 1580, 2449, 4898, 9796, 12245, 12739, 24490, 25478, 48980, 50956, 63695, 127390, 254780, 394909, 789818, 1006381, 1579636, 1974545, 2012762, 3949090, 4025524, 5031905, 7898180, 10063810, 20127620, 31197811, 62395622, 124791244, 155989055, 311978110, 623956220]

約数ペア:

[(1, 623956220), (2, 311978110), (4, 155989055), (5, 124791244), (10, 62395622), (20, 31197811), (31, 20127620), (62, 10063810), (79, 7898180), (124, 5031905), (155, 4025524), (158, 3949090), (310, 2012762), (316, 1974545), (395, 1579636), (620, 1006381), (790, 789818), (1580, 394909), (2449, 254780), (4898, 127390), (9796, 63695), (12245, 50956), (12739, 48980), (24490, 25478)]