89955640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{54851}}^1$

素因数の和:54903

約数の個数: 32

約数和(自身を含む): 207340560

約数和(自身を除く): 117384920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 54851, 109702, 219404, 274255, 438808, 548510, 1097020, 2194040, 2248891, 4497782, 8995564, 11244455, 17991128, 22488910, 44977820, 89955640]

約数ペア:

[(1, 89955640), (2, 44977820), (4, 22488910), (5, 17991128), (8, 11244455), (10, 8995564), (20, 4497782), (40, 2248891), (41, 2194040), (82, 1097020), (164, 548510), (205, 438808), (328, 274255), (410, 219404), (820, 109702), (1640, 54851)]