77820275

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{113}}^1\times {\mathrm{163}}^1$

素因数の和:312

約数の個数: 36

約数和(自身を含む): 106062408

約数和(自身を除く): 28242133

約数列:

[1, 5, 13, 25, 65, 113, 163, 169, 325, 565, 815, 845, 1469, 2119, 2825, 4075, 4225, 7345, 10595, 18419, 19097, 27547, 36725, 52975, 92095, 95485, 137735, 239447, 460475, 477425, 688675, 1197235, 3112811, 5986175, 15564055, 77820275]

約数ペア:

[(1, 77820275), (5, 15564055), (13, 5986175), (25, 3112811), (65, 1197235), (113, 688675), (163, 477425), (169, 460475), (325, 239447), (565, 137735), (815, 95485), (845, 92095), (1469, 52975), (2119, 36725), (2825, 27547), (4075, 19097), (4225, 18419), (7345, 10595)]