1641875

素因数分解:

$5^4\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 20

約数和(自身を含む): 2136816

約数和(自身を除く): 494941

約数列:

[1, 5, 25, 37, 71, 125, 185, 355, 625, 925, 1775, 2627, 4625, 8875, 13135, 23125, 44375, 65675, 328375, 1641875]

約数ペア:

[(1, 1641875), (5, 328375), (25, 65675), (37, 44375), (71, 23125), (125, 13135), (185, 8875), (355, 4625), (625, 2627), (925, 1775)]