12813020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{419}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 29635200

約数和(自身を除く): 16822180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 419, 556, 695, 838, 1390, 1529, 1676, 2095, 2780, 3058, 4190, 4609, 6116, 7645, 8380, 9218, 15290, 18436, 23045, 30580, 46090, 58241, 92180, 116482, 232964, 291205, 582410, 640651, 1164820, 1281302, 2562604, 3203255, 6406510, 12813020]

約数ペア:

[(1, 12813020), (2, 6406510), (4, 3203255), (5, 2562604), (10, 1281302), (11, 1164820), (20, 640651), (22, 582410), (44, 291205), (55, 232964), (110, 116482), (139, 92180), (220, 58241), (278, 46090), (419, 30580), (556, 23045), (695, 18436), (838, 15290), (1390, 9218), (1529, 8380), (1676, 7645), (2095, 6116), (2780, 4609), (3058, 4190)]