87777405

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15121}}^1$

素因数の和:15178

約数の個数: 32

約数和(自身を含む): 159688320

約数和(自身を除く): 71910915

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 5805, 15121, 45363, 75605, 136089, 226815, 408267, 650203, 680445, 1950609, 2041335, 3251015, 5851827, 9753045, 17555481, 29259135, 87777405]

約数ペア:

[(1, 87777405), (3, 29259135), (5, 17555481), (9, 9753045), (15, 5851827), (27, 3251015), (43, 2041335), (45, 1950609), (129, 680445), (135, 650203), (215, 408267), (387, 226815), (645, 136089), (1161, 75605), (1935, 45363), (5805, 15121)]