18396875

素因数分解:

$5^5\times 7^1\times {\mathrm{29}}^2$

素因数の和:90

約数の個数: 36

約数和(自身を含む): 27217008

約数和(自身を除く): 8820133

約数列:

[1, 5, 7, 25, 29, 35, 125, 145, 175, 203, 625, 725, 841, 875, 1015, 3125, 3625, 4205, 4375, 5075, 5887, 18125, 21025, 21875, 25375, 29435, 90625, 105125, 126875, 147175, 525625, 634375, 735875, 2628125, 3679375, 18396875]

約数ペア:

[(1, 18396875), (5, 3679375), (7, 2628125), (25, 735875), (29, 634375), (35, 525625), (125, 147175), (145, 126875), (175, 105125), (203, 90625), (625, 29435), (725, 25375), (841, 21875), (875, 21025), (1015, 18125), (3125, 5887), (3625, 5075), (4205, 4375)]