78857212

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{739}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 163770880

約数和(自身を除く): 84913668

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 103, 148, 206, 259, 412, 518, 721, 739, 1036, 1442, 1478, 2884, 2956, 3811, 5173, 7622, 10346, 15244, 20692, 26677, 27343, 53354, 54686, 76117, 106708, 109372, 152234, 191401, 304468, 382802, 532819, 765604, 1065638, 2131276, 2816329, 5632658, 11265316, 19714303, 39428606, 78857212]

約数ペア:

[(1, 78857212), (2, 39428606), (4, 19714303), (7, 11265316), (14, 5632658), (28, 2816329), (37, 2131276), (74, 1065638), (103, 765604), (148, 532819), (206, 382802), (259, 304468), (412, 191401), (518, 152234), (721, 109372), (739, 106708), (1036, 76117), (1442, 54686), (1478, 53354), (2884, 27343), (2956, 26677), (3811, 20692), (5173, 15244), (7622, 10346)]