30840355

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 48492864

約数和(自身を除く): 17652509

約数列:

[1, 5, 7, 13, 23, 35, 49, 65, 91, 115, 161, 245, 299, 421, 455, 637, 805, 1127, 1495, 2093, 2105, 2947, 3185, 5473, 5635, 9683, 10465, 14651, 14735, 20629, 27365, 38311, 48415, 67781, 73255, 103145, 125879, 191555, 268177, 338905, 474467, 629395, 881153, 1340885, 2372335, 4405765, 6168071, 30840355]

約数ペア:

[(1, 30840355), (5, 6168071), (7, 4405765), (13, 2372335), (23, 1340885), (35, 881153), (49, 629395), (65, 474467), (91, 338905), (115, 268177), (161, 191555), (245, 125879), (299, 103145), (421, 73255), (455, 67781), (637, 48415), (805, 38311), (1127, 27365), (1495, 20629), (2093, 14735), (2105, 14651), (2947, 10465), (3185, 9683), (5473, 5635)]