210006875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{25847}}^1$

素因数の和:25880

約数の個数: 20

約数和(自身を含む): 282622032

約数和(自身を除く): 72615157

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 8125, 25847, 129235, 336011, 646175, 1680055, 3230875, 8400275, 16154375, 42001375, 210006875]

約数ペア:

[(1, 210006875), (5, 42001375), (13, 16154375), (25, 8400275), (65, 3230875), (125, 1680055), (325, 646175), (625, 336011), (1625, 129235), (8125, 25847)]