420095975

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{99431}}^1$

素因数の和:99467

約数の個数: 18

約数和(自身を含む): 564077736

約数和(自身を除く): 143981761

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 99431, 497155, 1292603, 2485775, 6463015, 16803839, 32315075, 84019195, 420095975]

約数ペア:

[(1, 420095975), (5, 84019195), (13, 32315075), (25, 16803839), (65, 6463015), (169, 2485775), (325, 1292603), (845, 497155), (4225, 99431)]