208528990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{10069}}^1$

素因数の和:10204

約数の個数: 32

約数和(自身を含む): 398772000

約数和(自身を除く): 190243010

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 545, 1090, 2071, 4142, 10069, 10355, 20138, 20710, 50345, 100690, 191311, 382622, 956555, 1097521, 1913110, 2195042, 5487605, 10975210, 20852899, 41705798, 104264495, 208528990]

約数ペア:

[(1, 208528990), (2, 104264495), (5, 41705798), (10, 20852899), (19, 10975210), (38, 5487605), (95, 2195042), (109, 1913110), (190, 1097521), (218, 956555), (545, 382622), (1090, 191311), (2071, 100690), (4142, 50345), (10069, 20710), (10355, 20138)]