19725448

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{487}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 38122560

約数和(自身を除く): 18397112

約数列:

[1, 2, 4, 8, 61, 83, 122, 166, 244, 332, 487, 488, 664, 974, 1948, 3896, 5063, 10126, 20252, 29707, 40421, 40504, 59414, 80842, 118828, 161684, 237656, 323368, 2465681, 4931362, 9862724, 19725448]

約数ペア:

[(1, 19725448), (2, 9862724), (4, 4931362), (8, 2465681), (61, 323368), (83, 237656), (122, 161684), (166, 118828), (244, 80842), (332, 59414), (487, 40504), (488, 40421), (664, 29707), (974, 20252), (1948, 10126), (3896, 5063)]