138752720

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3329}}^1$

素因数の和:3863

約数の個数: 40

約数和(自身を含む): 323316360

約数和(自身を除く): 184563640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 1042, 2084, 2605, 3329, 4168, 5210, 6658, 8336, 10420, 13316, 16645, 20840, 26632, 33290, 41680, 53264, 66580, 133160, 266320, 1734409, 3468818, 6937636, 8672045, 13875272, 17344090, 27750544, 34688180, 69376360, 138752720]

約数ペア:

[(1, 138752720), (2, 69376360), (4, 34688180), (5, 27750544), (8, 17344090), (10, 13875272), (16, 8672045), (20, 6937636), (40, 3468818), (80, 1734409), (521, 266320), (1042, 133160), (2084, 66580), (2605, 53264), (3329, 41680), (4168, 33290), (5210, 26632), (6658, 20840), (8336, 16645), (10420, 13316)]