123321565

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{13043}}^1$

素因数の和:13140

約数の個数: 16

約数和(自身を含む): 155275776

約数和(自身を除く): 31954211

約数列:

[1, 5, 31, 61, 155, 305, 1891, 9455, 13043, 65215, 404333, 795623, 2021665, 3978115, 24664313, 123321565]

約数ペア:

[(1, 123321565), (5, 24664313), (31, 3978115), (61, 2021665), (155, 795623), (305, 404333), (1891, 65215), (9455, 13043)]