199385680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191717}}^1$

素因数の和:191743

約数の個数: 40

約数和(自身を含む): 499233672

約数和(自身を除く): 299847992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 191717, 383434, 766868, 958585, 1533736, 1917170, 2492321, 3067472, 3834340, 4984642, 7668680, 9969284, 12461605, 15337360, 19938568, 24923210, 39877136, 49846420, 99692840, 199385680]

約数ペア:

[(1, 199385680), (2, 99692840), (4, 49846420), (5, 39877136), (8, 24923210), (10, 19938568), (13, 15337360), (16, 12461605), (20, 9969284), (26, 7668680), (40, 4984642), (52, 3834340), (65, 3067472), (80, 2492321), (104, 1917170), (130, 1533736), (208, 958585), (260, 766868), (520, 383434), (1040, 191717)]