78805025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5639}}^1$

素因数の和:5705

約数の個数: 24

約数和(自身を含む): 107701440

約数和(自身を除く): 28896415

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 559, 1075, 2795, 5639, 13975, 28195, 73307, 140975, 242477, 366535, 1212385, 1832675, 3152201, 6061925, 15761005, 78805025]

約数ペア:

[(1, 78805025), (5, 15761005), (13, 6061925), (25, 3152201), (43, 1832675), (65, 1212385), (215, 366535), (325, 242477), (559, 140975), (1075, 73307), (2795, 28195), (5639, 13975)]