81018678

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:541

約数の個数: 64

約数和(自身を含む): 182327040

約数和(自身を除く): 101308362

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 67, 74, 78, 111, 134, 201, 222, 402, 419, 481, 838, 871, 962, 1257, 1443, 1742, 2479, 2514, 2613, 2886, 4958, 5226, 5447, 7437, 10894, 14874, 15503, 16341, 28073, 31006, 32227, 32682, 46509, 56146, 64454, 84219, 93018, 96681, 168438, 193362, 201539, 364949, 403078, 604617, 729898, 1038701, 1094847, 1209234, 2077402, 2189694, 3116103, 6232206, 13503113, 27006226, 40509339, 81018678]

約数ペア:

[(1, 81018678), (2, 40509339), (3, 27006226), (6, 13503113), (13, 6232206), (26, 3116103), (37, 2189694), (39, 2077402), (67, 1209234), (74, 1094847), (78, 1038701), (111, 729898), (134, 604617), (201, 403078), (222, 364949), (402, 201539), (419, 193362), (481, 168438), (838, 96681), (871, 93018), (962, 84219), (1257, 64454), (1443, 56146), (1742, 46509), (2479, 32682), (2514, 32227), (2613, 31006), (2886, 28073), (4958, 16341), (5226, 15503), (5447, 14874), (7437, 10894)]