20856331340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4718627}}^1$

素因数の和:4718666

約数の個数: 48

約数和(自身を含む): 49941958752

約数和(自身を除く): 29085627412

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 4718627, 9437254, 18874508, 23593135, 47186270, 61342151, 80216659, 94372540, 122684302, 160433318, 245368604, 306710755, 320866636, 401083295, 613421510, 802166590, 1042816567, 1226843020, 1604333180, 2085633134, 4171266268, 5214082835, 10428165670, 20856331340]

約数ペア:

[(1, 20856331340), (2, 10428165670), (4, 5214082835), (5, 4171266268), (10, 2085633134), (13, 1604333180), (17, 1226843020), (20, 1042816567), (26, 802166590), (34, 613421510), (52, 401083295), (65, 320866636), (68, 306710755), (85, 245368604), (130, 160433318), (170, 122684302), (221, 94372540), (260, 80216659), (340, 61342151), (442, 47186270), (884, 23593135), (1105, 18874508), (2210, 9437254), (4420, 4718627)]