18681275

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{587}}^1$

素因数の和:683

約数の個数: 24

約数和(自身を含む): 24790080

約数和(自身を除く): 6108805

約数列:

[1, 5, 19, 25, 67, 95, 335, 475, 587, 1273, 1675, 2935, 6365, 11153, 14675, 31825, 39329, 55765, 196645, 278825, 747251, 983225, 3736255, 18681275]

約数ペア:

[(1, 18681275), (5, 3736255), (19, 983225), (25, 747251), (67, 278825), (95, 196645), (335, 55765), (475, 39329), (587, 31825), (1273, 14675), (1675, 11153), (2935, 6365)]