2005493890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{10555231}}^1$

素因数の和:10555257

約数の個数: 16

約数和(自身を含む): 3799883520

約数和(自身を除く): 1794389630

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 10555231, 21110462, 52776155, 105552310, 200549389, 401098778, 1002746945, 2005493890]

約数ペア:

[(1, 2005493890), (2, 1002746945), (5, 401098778), (10, 200549389), (19, 105552310), (38, 52776155), (95, 21110462), (190, 10555231)]