210778905

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{2351}}^1$

素因数の和:2541

約数の個数: 32

約数和(自身を含む): 347719680

約数和(自身を除く): 136940775

約数列:

[1, 3, 5, 15, 43, 129, 139, 215, 417, 645, 695, 2085, 2351, 5977, 7053, 11755, 17931, 29885, 35265, 89655, 101093, 303279, 326789, 505465, 980367, 1516395, 1633945, 4901835, 14051927, 42155781, 70259635, 210778905]

約数ペア:

[(1, 210778905), (3, 70259635), (5, 42155781), (15, 14051927), (43, 4901835), (129, 1633945), (139, 1516395), (215, 980367), (417, 505465), (645, 326789), (695, 303279), (2085, 101093), (2351, 89655), (5977, 35265), (7053, 29885), (11755, 17931)]