420137515

素因数分解:

$5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{16649}}^1$

素因数の和:16771

約数の個数: 24

約数和(自身を含む): 592207200

約数和(自身を除く): 172069685

約数列:

[1, 5, 7, 35, 49, 103, 245, 515, 721, 3605, 5047, 16649, 25235, 83245, 116543, 582715, 815801, 1714847, 4079005, 8574235, 12003929, 60019645, 84027503, 420137515]

約数ペア:

[(1, 420137515), (5, 84027503), (7, 60019645), (35, 12003929), (49, 8574235), (103, 4079005), (245, 1714847), (515, 815801), (721, 582715), (3605, 116543), (5047, 83245), (16649, 25235)]