8640255

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{751}}^1$

素因数の和:831

約数の個数: 32

約数和(自身を含む): 15160320

約数和(自身を除く): 6520065

約数列:

[1, 3, 5, 13, 15, 39, 59, 65, 177, 195, 295, 751, 767, 885, 2253, 2301, 3755, 3835, 9763, 11265, 11505, 29289, 44309, 48815, 132927, 146445, 221545, 576017, 664635, 1728051, 2880085, 8640255]

約数ペア:

[(1, 8640255), (3, 2880085), (5, 1728051), (13, 664635), (15, 576017), (39, 221545), (59, 146445), (65, 132927), (177, 48815), (195, 44309), (295, 29289), (751, 11505), (767, 11265), (885, 9763), (2253, 3835), (2301, 3755)]