20586610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 22544270

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 79, 103, 110, 115, 158, 206, 230, 253, 395, 506, 515, 790, 869, 1030, 1133, 1265, 1738, 1817, 2266, 2369, 2530, 3634, 4345, 4738, 5665, 8137, 8690, 9085, 11330, 11845, 16274, 18170, 19987, 23690, 26059, 39974, 40685, 52118, 81370, 89507, 99935, 130295, 179014, 187151, 199870, 260590, 374302, 447535, 895070, 935755, 1871510, 2058661, 4117322, 10293305, 20586610]

約数ペア:

[(1, 20586610), (2, 10293305), (5, 4117322), (10, 2058661), (11, 1871510), (22, 935755), (23, 895070), (46, 447535), (55, 374302), (79, 260590), (103, 199870), (110, 187151), (115, 179014), (158, 130295), (206, 99935), (230, 89507), (253, 81370), (395, 52118), (506, 40685), (515, 39974), (790, 26059), (869, 23690), (1030, 19987), (1133, 18170), (1265, 16274), (1738, 11845), (1817, 11330), (2266, 9085), (2369, 8690), (2530, 8137), (3634, 5665), (4345, 4738)]