20586860

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{3001}}^1$

素因数の和:3031

約数の個数: 48

約数和(自身を含む): 50433600

約数和(自身を除く): 29846740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3001, 3430, 6002, 6860, 12004, 15005, 21007, 30010, 42014, 60020, 84028, 105035, 147049, 210070, 294098, 420140, 588196, 735245, 1029343, 1470490, 2058686, 2940980, 4117372, 5146715, 10293430, 20586860]

約数ペア:

[(1, 20586860), (2, 10293430), (4, 5146715), (5, 4117372), (7, 2940980), (10, 2058686), (14, 1470490), (20, 1029343), (28, 735245), (35, 588196), (49, 420140), (70, 294098), (98, 210070), (140, 147049), (196, 105035), (245, 84028), (343, 60020), (490, 42014), (686, 30010), (980, 21007), (1372, 15005), (1715, 12004), (3001, 6860), (3430, 6002)]