26500625

素因数分解:

$5^4\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:518

約数の個数: 20

約数和(自身を含む): 33504900

約数和(自身を除く): 7004275

約数列:

[1, 5, 25, 109, 125, 389, 545, 625, 1945, 2725, 9725, 13625, 42401, 48625, 68125, 212005, 243125, 1060025, 5300125, 26500625]

約数ペア:

[(1, 26500625), (5, 5300125), (25, 1060025), (109, 243125), (125, 212005), (389, 68125), (545, 48625), (625, 42401), (1945, 13625), (2725, 9725)]