201575020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{2339}}^1$

素因数の和:2518

約数の個数: 48

約数和(自身を含む): 440294400

約数和(自身を除く): 238719380

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 139, 155, 278, 310, 556, 620, 695, 1390, 2339, 2780, 4309, 4678, 8618, 9356, 11695, 17236, 21545, 23390, 43090, 46780, 72509, 86180, 145018, 290036, 325121, 362545, 650242, 725090, 1300484, 1450180, 1625605, 3251210, 6502420, 10078751, 20157502, 40315004, 50393755, 100787510, 201575020]

約数ペア:

[(1, 201575020), (2, 100787510), (4, 50393755), (5, 40315004), (10, 20157502), (20, 10078751), (31, 6502420), (62, 3251210), (124, 1625605), (139, 1450180), (155, 1300484), (278, 725090), (310, 650242), (556, 362545), (620, 325121), (695, 290036), (1390, 145018), (2339, 86180), (2780, 72509), (4309, 46780), (4678, 43090), (8618, 23390), (9356, 21545), (11695, 17236)]