20647941125

素因数分解:

$5^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{401}}^1\times {\mathrm{709}}^1$

素因数の和:1215

約数の個数: 64

約数和(自身を含む): 29921149440

約数和(自身を除く): 9273208315

約数列:

[1, 5, 7, 25, 35, 83, 125, 175, 401, 415, 581, 709, 875, 2005, 2075, 2807, 2905, 3545, 4963, 10025, 10375, 14035, 14525, 17725, 24815, 33283, 50125, 58847, 70175, 72625, 88625, 124075, 166415, 232981, 284309, 294235, 350875, 411929, 620375, 832075, 1164905, 1421545, 1471175, 1990163, 2059645, 4160375, 5824525, 7107725, 7355875, 9950815, 10298225, 23597647, 29122625, 35538625, 49754075, 51491125, 117988235, 165183529, 248770375, 589941175, 825917645, 2949705875, 4129588225, 20647941125]

約数ペア:

[(1, 20647941125), (5, 4129588225), (7, 2949705875), (25, 825917645), (35, 589941175), (83, 248770375), (125, 165183529), (175, 117988235), (401, 51491125), (415, 49754075), (581, 35538625), (709, 29122625), (875, 23597647), (2005, 10298225), (2075, 9950815), (2807, 7355875), (2905, 7107725), (3545, 5824525), (4963, 4160375), (10025, 2059645), (10375, 1990163), (14035, 1471175), (14525, 1421545), (17725, 1164905), (24815, 832075), (33283, 620375), (50125, 411929), (58847, 350875), (70175, 294235), (72625, 284309), (88625, 232981), (124075, 166415)]