557720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 1278720

約数和(自身を除く): 721000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 191, 292, 365, 382, 584, 730, 764, 955, 1460, 1528, 1910, 2920, 3820, 7640, 13943, 27886, 55772, 69715, 111544, 139430, 278860, 557720]

約数ペア:

[(1, 557720), (2, 278860), (4, 139430), (5, 111544), (8, 69715), (10, 55772), (20, 27886), (40, 13943), (73, 7640), (146, 3820), (191, 2920), (292, 1910), (365, 1528), (382, 1460), (584, 955), (730, 764)]