22790440

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4099}}^1$

素因数の和:4249

約数の個数: 32

約数和(自身を含む): 51660000

約数和(自身を除く): 28869560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 4099, 5560, 8198, 16396, 20495, 32792, 40990, 81980, 163960, 569761, 1139522, 2279044, 2848805, 4558088, 5697610, 11395220, 22790440]

約数ペア:

[(1, 22790440), (2, 11395220), (4, 5697610), (5, 4558088), (8, 2848805), (10, 2279044), (20, 1139522), (40, 569761), (139, 163960), (278, 81980), (556, 40990), (695, 32792), (1112, 20495), (1390, 16396), (2780, 8198), (4099, 5560)]