68289575

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{487}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 87137280

約数和(自身を除く): 18847705

約数列:

[1, 5, 25, 71, 79, 355, 395, 487, 1775, 1975, 2435, 5609, 12175, 28045, 34577, 38473, 140225, 172885, 192365, 864425, 961825, 2731583, 13657915, 68289575]

約数ペア:

[(1, 68289575), (5, 13657915), (25, 2731583), (71, 961825), (79, 864425), (355, 192365), (395, 172885), (487, 140225), (1775, 38473), (1975, 34577), (2435, 28045), (5609, 12175)]