72019969

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 89616384

約数和(自身を除く): 17596415

約数列:

[1, 7, 23, 43, 101, 103, 161, 301, 707, 721, 989, 2323, 2369, 4343, 4429, 6923, 10403, 16261, 16583, 30401, 31003, 72821, 99889, 101867, 239269, 447329, 699223, 713069, 1674883, 3131303, 10288567, 72019969]

約数ペア:

[(1, 72019969), (7, 10288567), (23, 3131303), (43, 1674883), (101, 713069), (103, 699223), (161, 447329), (301, 239269), (707, 101867), (721, 99889), (989, 72821), (2323, 31003), (2369, 30401), (4343, 16583), (4429, 16261), (6923, 10403)]