64609025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10463}}^1$

素因数の和:10505

約数の個数: 24

約数和(自身を含む): 90827520

約数和(自身を除く): 26218495

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 475, 1235, 6175, 10463, 52315, 136019, 198797, 261575, 680095, 993985, 2584361, 3400475, 4969925, 12921805, 64609025]

約数ペア:

[(1, 64609025), (5, 12921805), (13, 4969925), (19, 3400475), (25, 2584361), (65, 993985), (95, 680095), (247, 261575), (325, 198797), (475, 136019), (1235, 52315), (6175, 10463)]