20218055075

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1\times {\mathrm{1223}}^1$

素因数の和:1604

約数の個数: 48

約数和(自身を含む): 26314315776

約数和(自身を除く): 6096260701

約数列:

[1, 5, 25, 31, 83, 155, 257, 415, 775, 1223, 1285, 2075, 2573, 6115, 6425, 7967, 12865, 21331, 30575, 37913, 39835, 64325, 101509, 106655, 189565, 199175, 314311, 507545, 533275, 661261, 947825, 1571555, 2537725, 3146779, 3306305, 7857775, 9743641, 15733895, 16531525, 26087813, 48718205, 78669475, 130439065, 243591025, 652195325, 808722203, 4043611015, 20218055075]

約数ペア:

[(1, 20218055075), (5, 4043611015), (25, 808722203), (31, 652195325), (83, 243591025), (155, 130439065), (257, 78669475), (415, 48718205), (775, 26087813), (1223, 16531525), (1285, 15733895), (2075, 9743641), (2573, 7857775), (6115, 3306305), (6425, 3146779), (7967, 2537725), (12865, 1571555), (21331, 947825), (30575, 661261), (37913, 533275), (39835, 507545), (64325, 314311), (101509, 199175), (106655, 189565)]