20115721408

素因数分解:

$2^6\times {\mathrm{1229}}^1\times {\mathrm{255743}}^1$

素因数の和:256984

約数の個数: 28

約数和(自身を含む): 39949770240

約数和(自身を除く): 19834048832

約数列:

[1, 2, 4, 8, 16, 32, 64, 1229, 2458, 4916, 9832, 19664, 39328, 78656, 255743, 511486, 1022972, 2045944, 4091888, 8183776, 16367552, 314308147, 628616294, 1257232588, 2514465176, 5028930352, 10057860704, 20115721408]

約数ペア:

[(1, 20115721408), (2, 10057860704), (4, 5028930352), (8, 2514465176), (16, 1257232588), (32, 628616294), (64, 314308147), (1229, 16367552), (2458, 8183776), (4916, 4091888), (9832, 2045944), (19664, 1022972), (39328, 511486), (78656, 255743)]