72168405

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{2729}}^1$

素因数の和:2821

約数の個数: 32

約数和(自身を含む): 121080960

約数和(自身を除く): 48912555

約数列:

[1, 3, 5, 15, 41, 43, 123, 129, 205, 215, 615, 645, 1763, 2729, 5289, 8187, 8815, 13645, 26445, 40935, 111889, 117347, 335667, 352041, 559445, 586735, 1678335, 1760205, 4811227, 14433681, 24056135, 72168405]

約数ペア:

[(1, 72168405), (3, 24056135), (5, 14433681), (15, 4811227), (41, 1760205), (43, 1678335), (123, 586735), (129, 559445), (205, 352041), (215, 335667), (615, 117347), (645, 111889), (1763, 40935), (2729, 26445), (5289, 13645), (8187, 8815)]