2018220680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1\times {\mathrm{281}}^1$

素因数の和:639

約数の個数: 128

約数和(自身を含む): 5277415680

約数和(自身を除く): 3259195000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 227, 280, 281, 452, 454, 562, 565, 791, 904, 908, 1124, 1130, 1135, 1405, 1582, 1589, 1816, 1967, 2248, 2260, 2270, 2810, 3164, 3178, 3934, 3955, 4520, 4540, 5620, 6328, 6356, 7868, 7910, 7945, 9080, 9835, 11240, 12712, 15736, 15820, 15890, 19670, 25651, 31640, 31753, 31780, 39340, 51302, 63506, 63560, 63787, 78680, 102604, 127012, 127574, 128255, 158765, 179557, 205208, 222271, 254024, 255148, 256510, 317530, 318935, 359114, 444542, 446509, 510296, 513020, 635060, 637870, 718228, 889084, 893018, 897785, 1026040, 1111355, 1270120, 1275740, 1436456, 1778168, 1786036, 1795570, 2222710, 2232545, 2551480, 3572072, 3591140, 4445420, 4465090, 7182280, 7207931, 8890840, 8930180, 14415862, 17860360, 28831724, 36039655, 50455517, 57663448, 72079310, 100911034, 144158620, 201822068, 252277585, 288317240, 403644136, 504555170, 1009110340, 2018220680]

約数ペア:

[(1, 2018220680), (2, 1009110340), (4, 504555170), (5, 403644136), (7, 288317240), (8, 252277585), (10, 201822068), (14, 144158620), (20, 100911034), (28, 72079310), (35, 57663448), (40, 50455517), (56, 36039655), (70, 28831724), (113, 17860360), (140, 14415862), (226, 8930180), (227, 8890840), (280, 7207931), (281, 7182280), (452, 4465090), (454, 4445420), (562, 3591140), (565, 3572072), (791, 2551480), (904, 2232545), (908, 2222710), (1124, 1795570), (1130, 1786036), (1135, 1778168), (1405, 1436456), (1582, 1275740), (1589, 1270120), (1816, 1111355), (1967, 1026040), (2248, 897785), (2260, 893018), (2270, 889084), (2810, 718228), (3164, 637870), (3178, 635060), (3934, 513020), (3955, 510296), (4520, 446509), (4540, 444542), (5620, 359114), (6328, 318935), (6356, 317530), (7868, 256510), (7910, 255148), (7945, 254024), (9080, 222271), (9835, 205208), (11240, 179557), (12712, 158765), (15736, 128255), (15820, 127574), (15890, 127012), (19670, 102604), (25651, 78680), (31640, 63787), (31753, 63560), (31780, 63506), (39340, 51302)]