205156820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{941}}^1\times {\mathrm{991}}^1$

素因数の和:1952

約数の個数: 48

約数和(自身を含む): 470969856

約数和(自身を除く): 265813036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 941, 991, 1882, 1982, 3764, 3964, 4705, 4955, 9410, 9910, 10351, 10901, 18820, 19820, 20702, 21802, 41404, 43604, 51755, 54505, 103510, 109010, 207020, 218020, 932531, 1865062, 3730124, 4662655, 9325310, 10257841, 18650620, 20515682, 41031364, 51289205, 102578410, 205156820]

約数ペア:

[(1, 205156820), (2, 102578410), (4, 51289205), (5, 41031364), (10, 20515682), (11, 18650620), (20, 10257841), (22, 9325310), (44, 4662655), (55, 3730124), (110, 1865062), (220, 932531), (941, 218020), (991, 207020), (1882, 109010), (1982, 103510), (3764, 54505), (3964, 51755), (4705, 43604), (4955, 41404), (9410, 21802), (9910, 20702), (10351, 19820), (10901, 18820)]