69648820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{743}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 151240320

約数和(自身を除く): 81591500

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 109, 172, 215, 218, 430, 436, 545, 743, 860, 1090, 1486, 2180, 2972, 3715, 4687, 7430, 9374, 14860, 18748, 23435, 31949, 46870, 63898, 80987, 93740, 127796, 159745, 161974, 319490, 323948, 404935, 638980, 809870, 1619740, 3482441, 6964882, 13929764, 17412205, 34824410, 69648820]

約数ペア:

[(1, 69648820), (2, 34824410), (4, 17412205), (5, 13929764), (10, 6964882), (20, 3482441), (43, 1619740), (86, 809870), (109, 638980), (172, 404935), (215, 323948), (218, 319490), (430, 161974), (436, 159745), (545, 127796), (743, 93740), (860, 80987), (1090, 63898), (1486, 46870), (2180, 31949), (2972, 23435), (3715, 18748), (4687, 14860), (7430, 9374)]