123581655

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{88589}}^1$

素因数の和:88631

約数の個数: 24

約数和(自身を含む): 221120640

約数和(自身を除く): 97538985

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 88589, 265767, 442945, 797301, 1328835, 2746259, 3986505, 8238777, 13731295, 24716331, 41193885, 123581655]

約数ペア:

[(1, 123581655), (3, 41193885), (5, 24716331), (9, 13731295), (15, 8238777), (31, 3986505), (45, 2746259), (93, 1328835), (155, 797301), (279, 442945), (465, 265767), (1395, 88589)]