398490290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{7927}}^1$

素因数の和:8402

約数の個数: 32

約数和(自身を含む): 784301184

約数和(自身を除く): 385810894

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 457, 914, 2285, 4570, 5027, 7927, 10054, 15854, 25135, 39635, 50270, 79270, 87197, 174394, 435985, 871970, 3622639, 7245278, 18113195, 36226390, 39849029, 79698058, 199245145, 398490290]

約数ペア:

[(1, 398490290), (2, 199245145), (5, 79698058), (10, 39849029), (11, 36226390), (22, 18113195), (55, 7245278), (110, 3622639), (457, 871970), (914, 435985), (2285, 174394), (4570, 87197), (5027, 79270), (7927, 50270), (10054, 39635), (15854, 25135)]