40777780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{223}}^2$

素因数の和:496

約数の個数: 36

約数和(自身を含む): 88117092

約数和(自身を除く): 47339312

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 223, 410, 446, 820, 892, 1115, 2230, 4460, 9143, 18286, 36572, 45715, 49729, 91430, 99458, 182860, 198916, 248645, 497290, 994580, 2038889, 4077778, 8155556, 10194445, 20388890, 40777780]

約数ペア:

[(1, 40777780), (2, 20388890), (4, 10194445), (5, 8155556), (10, 4077778), (20, 2038889), (41, 994580), (82, 497290), (164, 248645), (205, 198916), (223, 182860), (410, 99458), (446, 91430), (820, 49729), (892, 45715), (1115, 36572), (2230, 18286), (4460, 9143)]