18770360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1559}}^1$

素因数の和:1620

約数の個数: 64

約数和(自身を含む): 49420800

約数和(自身を除く): 30650440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1559, 1720, 2408, 3010, 3118, 6020, 6236, 7795, 10913, 12040, 12472, 15590, 21826, 31180, 43652, 54565, 62360, 67037, 87304, 109130, 134074, 218260, 268148, 335185, 436520, 469259, 536296, 670370, 938518, 1340740, 1877036, 2346295, 2681480, 3754072, 4692590, 9385180, 18770360]

約数ペア:

[(1, 18770360), (2, 9385180), (4, 4692590), (5, 3754072), (7, 2681480), (8, 2346295), (10, 1877036), (14, 1340740), (20, 938518), (28, 670370), (35, 536296), (40, 469259), (43, 436520), (56, 335185), (70, 268148), (86, 218260), (140, 134074), (172, 109130), (215, 87304), (280, 67037), (301, 62360), (344, 54565), (430, 43652), (602, 31180), (860, 21826), (1204, 15590), (1505, 12472), (1559, 12040), (1720, 10913), (2408, 7795), (3010, 6236), (3118, 6020)]