19897930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{569}}^1$

素因数の和:858

約数の個数: 32

約数和(自身を含む): 38782800

約数和(自身を除く): 18884870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 269, 538, 569, 1138, 1345, 2690, 2845, 3497, 5690, 6994, 7397, 14794, 17485, 34970, 36985, 73970, 153061, 306122, 765305, 1530610, 1989793, 3979586, 9948965, 19897930]

約数ペア:

[(1, 19897930), (2, 9948965), (5, 3979586), (10, 1989793), (13, 1530610), (26, 765305), (65, 306122), (130, 153061), (269, 73970), (538, 36985), (569, 34970), (1138, 17485), (1345, 14794), (2690, 7397), (2845, 6994), (3497, 5690)]