18801875

素因数分解:

$5^4\times {\mathrm{67}}^1\times {\mathrm{449}}^1$

素因数の和:536

約数の個数: 20

約数和(自身を含む): 23898600

約数和(自身を除く): 5096725

約数列:

[1, 5, 25, 67, 125, 335, 449, 625, 1675, 2245, 8375, 11225, 30083, 41875, 56125, 150415, 280625, 752075, 3760375, 18801875]

約数ペア:

[(1, 18801875), (5, 3760375), (25, 752075), (67, 280625), (125, 150415), (335, 56125), (449, 41875), (625, 30083), (1675, 11225), (2245, 8375)]