28221640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{24329}}^1$

素因数の和:24369

約数の個数: 32

約数和(自身を含む): 65691000

約数和(自身を除く): 37469360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 24329, 48658, 97316, 121645, 194632, 243290, 486580, 705541, 973160, 1411082, 2822164, 3527705, 5644328, 7055410, 14110820, 28221640]

約数ペア:

[(1, 28221640), (2, 14110820), (4, 7055410), (5, 5644328), (8, 3527705), (10, 2822164), (20, 1411082), (29, 973160), (40, 705541), (58, 486580), (116, 243290), (145, 194632), (232, 121645), (290, 97316), (580, 48658), (1160, 24329)]