208027820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{10391}}^1$

素因数の和:10431

約数の個数: 96

約数和(自身を含む): 586607616

約数和(自身を除く): 378579796

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 1001, 1430, 1540, 1820, 2002, 2860, 4004, 5005, 10010, 10391, 20020, 20782, 41564, 51955, 72737, 103910, 114301, 135083, 145474, 207820, 228602, 270166, 290948, 363685, 457204, 540332, 571505, 675415, 727370, 800107, 945581, 1143010, 1350830, 1454740, 1485913, 1600214, 1891162, 2286020, 2701660, 2971826, 3200428, 3782324, 4000535, 4727905, 5943652, 7429565, 8001070, 9455810, 10401391, 14859130, 16002140, 18911620, 20802782, 29718260, 41605564, 52006955, 104013910, 208027820]

約数ペア:

[(1, 208027820), (2, 104013910), (4, 52006955), (5, 41605564), (7, 29718260), (10, 20802782), (11, 18911620), (13, 16002140), (14, 14859130), (20, 10401391), (22, 9455810), (26, 8001070), (28, 7429565), (35, 5943652), (44, 4727905), (52, 4000535), (55, 3782324), (65, 3200428), (70, 2971826), (77, 2701660), (91, 2286020), (110, 1891162), (130, 1600214), (140, 1485913), (143, 1454740), (154, 1350830), (182, 1143010), (220, 945581), (260, 800107), (286, 727370), (308, 675415), (364, 571505), (385, 540332), (455, 457204), (572, 363685), (715, 290948), (770, 270166), (910, 228602), (1001, 207820), (1430, 145474), (1540, 135083), (1820, 114301), (2002, 103910), (2860, 72737), (4004, 51955), (5005, 41564), (10010, 20782), (10391, 20020)]