278312540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{23869}}^1$

素因数の和:23942

約数の個数: 48

約数和(自身を含む): 649645920

約数和(自身を除く): 371333380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 2332, 2915, 5830, 11660, 23869, 47738, 95476, 119345, 238690, 262559, 477380, 525118, 1050236, 1265057, 1312795, 2530114, 2625590, 5060228, 5251180, 6325285, 12650570, 13915627, 25301140, 27831254, 55662508, 69578135, 139156270, 278312540]

約数ペア:

[(1, 278312540), (2, 139156270), (4, 69578135), (5, 55662508), (10, 27831254), (11, 25301140), (20, 13915627), (22, 12650570), (44, 6325285), (53, 5251180), (55, 5060228), (106, 2625590), (110, 2530114), (212, 1312795), (220, 1265057), (265, 1050236), (530, 525118), (583, 477380), (1060, 262559), (1166, 238690), (2332, 119345), (2915, 95476), (5830, 47738), (11660, 23869)]