20943020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{659}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 50561280

約数和(自身を除く): 29618260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 454, 659, 908, 1135, 1318, 1589, 2270, 2636, 3178, 3295, 4540, 4613, 6356, 6590, 7945, 9226, 13180, 15890, 18452, 23065, 31780, 46130, 92260, 149593, 299186, 598372, 747965, 1047151, 1495930, 2094302, 2991860, 4188604, 5235755, 10471510, 20943020]

約数ペア:

[(1, 20943020), (2, 10471510), (4, 5235755), (5, 4188604), (7, 2991860), (10, 2094302), (14, 1495930), (20, 1047151), (28, 747965), (35, 598372), (70, 299186), (140, 149593), (227, 92260), (454, 46130), (659, 31780), (908, 23065), (1135, 18452), (1318, 15890), (1589, 13180), (2270, 9226), (2636, 7945), (3178, 6590), (3295, 6356), (4540, 4613)]