221716180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{226241}}^1$

素因数の和:226264

約数の個数: 36

約数和(自身を含む): 541623348

約数和(自身を除く): 319907168

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 226241, 452482, 904964, 1131205, 1583687, 2262410, 3167374, 4524820, 6334748, 7918435, 11085809, 15836870, 22171618, 31673740, 44343236, 55429045, 110858090, 221716180]

約数ペア:

[(1, 221716180), (2, 110858090), (4, 55429045), (5, 44343236), (7, 31673740), (10, 22171618), (14, 15836870), (20, 11085809), (28, 7918435), (35, 6334748), (49, 4524820), (70, 3167374), (98, 2262410), (140, 1583687), (196, 1131205), (245, 904964), (490, 452482), (980, 226241)]