2123457640

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{389}}^1\times {\mathrm{571}}^1$

素因数の和:1210

約数の個数: 64

約数和(自身を含む): 4818528000

約数和(自身を除く): 2695070360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 389, 478, 571, 778, 956, 1142, 1195, 1556, 1912, 1945, 2284, 2390, 2855, 3112, 3890, 4568, 4780, 5710, 7780, 9560, 11420, 15560, 22840, 92971, 136469, 185942, 222119, 272938, 371884, 444238, 464855, 545876, 682345, 743768, 888476, 929710, 1091752, 1110595, 1364690, 1776952, 1859420, 2221190, 2729380, 3718840, 4442380, 5458760, 8884760, 53086441, 106172882, 212345764, 265432205, 424691528, 530864410, 1061728820, 2123457640]

約数ペア:

[(1, 2123457640), (2, 1061728820), (4, 530864410), (5, 424691528), (8, 265432205), (10, 212345764), (20, 106172882), (40, 53086441), (239, 8884760), (389, 5458760), (478, 4442380), (571, 3718840), (778, 2729380), (956, 2221190), (1142, 1859420), (1195, 1776952), (1556, 1364690), (1912, 1110595), (1945, 1091752), (2284, 929710), (2390, 888476), (2855, 743768), (3112, 682345), (3890, 545876), (4568, 464855), (4780, 444238), (5710, 371884), (7780, 272938), (9560, 222119), (11420, 185942), (15560, 136469), (22840, 92971)]