19906770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51043}}^1$

素因数の和:51066

約数の個数: 32

約数和(自身を含む): 51452352

約数和(自身を除く): 31545582

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 51043, 102086, 153129, 255215, 306258, 510430, 663559, 765645, 1327118, 1531290, 1990677, 3317795, 3981354, 6635590, 9953385, 19906770]

約数ペア:

[(1, 19906770), (2, 9953385), (3, 6635590), (5, 3981354), (6, 3317795), (10, 1990677), (13, 1531290), (15, 1327118), (26, 765645), (30, 663559), (39, 510430), (65, 306258), (78, 255215), (130, 153129), (195, 102086), (390, 51043)]