640125

素因数分解:

$3^2\times 5^3\times {\mathrm{569}}^1$

素因数の和:590

約数の個数: 24

約数和(自身を含む): 1155960

約数和(自身を除く): 515835

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 569, 1125, 1707, 2845, 5121, 8535, 14225, 25605, 42675, 71125, 128025, 213375, 640125]

約数ペア:

[(1, 640125), (3, 213375), (5, 128025), (9, 71125), (15, 42675), (25, 25605), (45, 14225), (75, 8535), (125, 5121), (225, 2845), (375, 1707), (569, 1125)]