20180504560

素因数分解:

$2^4\times 5^1\times {\mathrm{2437}}^1\times {\mathrm{103511}}^1$

素因数の和:105961

約数の個数: 40

約数和(自身を含む): 46939379616

約数和(自身を除く): 26758875056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2437, 4874, 9748, 12185, 19496, 24370, 38992, 48740, 97480, 103511, 194960, 207022, 414044, 517555, 828088, 1035110, 1656176, 2070220, 4140440, 8280880, 252256307, 504512614, 1009025228, 1261281535, 2018050456, 2522563070, 4036100912, 5045126140, 10090252280, 20180504560]

約数ペア:

[(1, 20180504560), (2, 10090252280), (4, 5045126140), (5, 4036100912), (8, 2522563070), (10, 2018050456), (16, 1261281535), (20, 1009025228), (40, 504512614), (80, 252256307), (2437, 8280880), (4874, 4140440), (9748, 2070220), (12185, 1656176), (19496, 1035110), (24370, 828088), (38992, 517555), (48740, 414044), (97480, 207022), (103511, 194960)]