39940355

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2141}}^1$

素因数の和:2207

約数の個数: 32

約数和(自身を含む): 60455808

約数和(自身を除く): 20515453

約数列:

[1, 5, 7, 13, 35, 41, 65, 91, 205, 287, 455, 533, 1435, 2141, 2665, 3731, 10705, 14987, 18655, 27833, 74935, 87781, 139165, 194831, 438905, 614467, 974155, 1141153, 3072335, 5705765, 7988071, 39940355]

約数ペア:

[(1, 39940355), (5, 7988071), (7, 5705765), (13, 3072335), (35, 1141153), (41, 974155), (65, 614467), (91, 438905), (205, 194831), (287, 139165), (455, 87781), (533, 74935), (1435, 27833), (2141, 18655), (2665, 14987), (3731, 10705)]