201520220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{563}}^1\times {\mathrm{1627}}^1$

素因数の和:2210

約数の個数: 48

約数和(自身を含む): 462768768

約数和(自身を除く): 261248548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 563, 1126, 1627, 2252, 2815, 3254, 5630, 6193, 6508, 8135, 11260, 12386, 16270, 17897, 24772, 30965, 32540, 35794, 61930, 71588, 89485, 123860, 178970, 357940, 916001, 1832002, 3664004, 4580005, 9160010, 10076011, 18320020, 20152022, 40304044, 50380055, 100760110, 201520220]

約数ペア:

[(1, 201520220), (2, 100760110), (4, 50380055), (5, 40304044), (10, 20152022), (11, 18320020), (20, 10076011), (22, 9160010), (44, 4580005), (55, 3664004), (110, 1832002), (220, 916001), (563, 357940), (1126, 178970), (1627, 123860), (2252, 89485), (2815, 71588), (3254, 61930), (5630, 35794), (6193, 32540), (6508, 30965), (8135, 24772), (11260, 17897), (12386, 16270)]