40128220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1019}}^1$

素因数の和:1218

約数の個数: 48

約数和(自身を含む): 92534400

約数和(自身を除く): 52406180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 358, 716, 895, 1019, 1790, 1969, 2038, 3580, 3938, 4076, 5095, 7876, 9845, 10190, 11209, 19690, 20380, 22418, 39380, 44836, 56045, 112090, 182401, 224180, 364802, 729604, 912005, 1824010, 2006411, 3648020, 4012822, 8025644, 10032055, 20064110, 40128220]

約数ペア:

[(1, 40128220), (2, 20064110), (4, 10032055), (5, 8025644), (10, 4012822), (11, 3648020), (20, 2006411), (22, 1824010), (44, 912005), (55, 729604), (110, 364802), (179, 224180), (220, 182401), (358, 112090), (716, 56045), (895, 44836), (1019, 39380), (1790, 22418), (1969, 20380), (2038, 19690), (3580, 11209), (3938, 10190), (4076, 9845), (5095, 7876)]