25644555

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 47155680

約数和(自身を除く): 21511125

約数列:

[1, 3, 5, 9, 15, 29, 43, 45, 87, 129, 145, 215, 261, 387, 435, 457, 645, 1247, 1305, 1371, 1935, 2285, 3741, 4113, 6235, 6855, 11223, 13253, 18705, 19651, 20565, 39759, 56115, 58953, 66265, 98255, 119277, 176859, 198795, 294765, 569879, 596385, 884295, 1709637, 2849395, 5128911, 8548185, 25644555]

約数ペア:

[(1, 25644555), (3, 8548185), (5, 5128911), (9, 2849395), (15, 1709637), (29, 884295), (43, 596385), (45, 569879), (87, 294765), (129, 198795), (145, 176859), (215, 119277), (261, 98255), (387, 66265), (435, 58953), (457, 56115), (645, 39759), (1247, 20565), (1305, 19651), (1371, 18705), (1935, 13253), (2285, 11223), (3741, 6855), (4113, 6235)]