20344870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{283}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 45803520

約数和(自身を除く): 25458650

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 79, 91, 130, 158, 182, 283, 395, 455, 553, 566, 790, 910, 1027, 1106, 1415, 1981, 2054, 2765, 2830, 3679, 3962, 5135, 5530, 7189, 7358, 9905, 10270, 14378, 18395, 19810, 22357, 25753, 35945, 36790, 44714, 51506, 71890, 111785, 128765, 156499, 223570, 257530, 290641, 312998, 581282, 782495, 1453205, 1564990, 2034487, 2906410, 4068974, 10172435, 20344870]

約数ペア:

[(1, 20344870), (2, 10172435), (5, 4068974), (7, 2906410), (10, 2034487), (13, 1564990), (14, 1453205), (26, 782495), (35, 581282), (65, 312998), (70, 290641), (79, 257530), (91, 223570), (130, 156499), (158, 128765), (182, 111785), (283, 71890), (395, 51506), (455, 44714), (553, 36790), (566, 35945), (790, 25753), (910, 22357), (1027, 19810), (1106, 18395), (1415, 14378), (1981, 10270), (2054, 9905), (2765, 7358), (2830, 7189), (3679, 5530), (3962, 5135)]