4028025

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1249}}^1$

素因数の和:1305

約数の個数: 24

約数和(自身を含む): 6820000

約数和(自身を除く): 2791975

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 1249, 3225, 3747, 6245, 18735, 31225, 53707, 93675, 161121, 268535, 805605, 1342675, 4028025]

約数ペア:

[(1, 4028025), (3, 1342675), (5, 805605), (15, 268535), (25, 161121), (43, 93675), (75, 53707), (129, 31225), (215, 18735), (645, 6245), (1075, 3747), (1249, 3225)]