18750625

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{1579}}^1$

素因数の和:1618

約数の個数: 20

約数和(自身を含む): 24679600

約数和(自身を除く): 5928975

約数列:

[1, 5, 19, 25, 95, 125, 475, 625, 1579, 2375, 7895, 11875, 30001, 39475, 150005, 197375, 750025, 986875, 3750125, 18750625]

約数ペア:

[(1, 18750625), (5, 3750125), (19, 986875), (25, 750025), (95, 197375), (125, 150005), (475, 39475), (625, 30001), (1579, 11875), (2375, 7895)]