90618980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{238471}}^1$

素因数の和:238499

約数の個数: 24

約数和(自身を含む): 200316480

約数和(自身を除く): 109697500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 238471, 476942, 953884, 1192355, 2384710, 4530949, 4769420, 9061898, 18123796, 22654745, 45309490, 90618980]

約数ペア:

[(1, 90618980), (2, 45309490), (4, 22654745), (5, 18123796), (10, 9061898), (19, 4769420), (20, 4530949), (38, 2384710), (76, 1192355), (95, 953884), (190, 476942), (380, 238471)]