79970891

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 111349728

約数和(自身を除く): 31378837

約数列:

[1, 7, 11, 13, 49, 77, 91, 101, 113, 143, 539, 637, 707, 791, 1001, 1111, 1243, 1313, 1469, 4949, 5537, 7007, 7777, 8701, 9191, 10283, 11413, 14443, 16159, 54439, 60907, 64337, 71981, 79891, 101101, 113113, 125543, 148369, 559237, 707707, 791791, 878801, 1038583, 1632059, 6151607, 7270081, 11424413, 79970891]

約数ペア:

[(1, 79970891), (7, 11424413), (11, 7270081), (13, 6151607), (49, 1632059), (77, 1038583), (91, 878801), (101, 791791), (113, 707707), (143, 559237), (539, 148369), (637, 125543), (707, 113113), (791, 101101), (1001, 79891), (1111, 71981), (1243, 64337), (1313, 60907), (1469, 54439), (4949, 16159), (5537, 14443), (7007, 11413), (7777, 10283), (8701, 9191)]