405945

素因数分解:

$3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:142

約数の個数: 32

約数和(自身を含む): 752640

約数和(自身を除く): 346695

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 93, 97, 135, 155, 279, 291, 465, 485, 837, 873, 1395, 1455, 2619, 3007, 4185, 4365, 9021, 13095, 15035, 27063, 45105, 81189, 135315, 405945]

約数ペア:

[(1, 405945), (3, 135315), (5, 81189), (9, 45105), (15, 27063), (27, 15035), (31, 13095), (45, 9021), (93, 4365), (97, 4185), (135, 3007), (155, 2619), (279, 1455), (291, 1395), (465, 873), (485, 837)]