205820020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{5087}}^1$

素因数の和:5137

約数の個数: 72

約数和(自身を含む): 524837376

約数和(自身を除く): 319017356

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 289, 340, 476, 578, 595, 1156, 1190, 1445, 2023, 2380, 2890, 4046, 5087, 5780, 8092, 10115, 10174, 20230, 20348, 25435, 35609, 40460, 50870, 71218, 86479, 101740, 142436, 172958, 178045, 345916, 356090, 432395, 605353, 712180, 864790, 1210706, 1470143, 1729580, 2421412, 2940286, 3026765, 5880572, 6053530, 7350715, 10291001, 12107060, 14701430, 20582002, 29402860, 41164004, 51455005, 102910010, 205820020]

約数ペア:

[(1, 205820020), (2, 102910010), (4, 51455005), (5, 41164004), (7, 29402860), (10, 20582002), (14, 14701430), (17, 12107060), (20, 10291001), (28, 7350715), (34, 6053530), (35, 5880572), (68, 3026765), (70, 2940286), (85, 2421412), (119, 1729580), (140, 1470143), (170, 1210706), (238, 864790), (289, 712180), (340, 605353), (476, 432395), (578, 356090), (595, 345916), (1156, 178045), (1190, 172958), (1445, 142436), (2023, 101740), (2380, 86479), (2890, 71218), (4046, 50870), (5087, 40460), (5780, 35609), (8092, 25435), (10115, 20348), (10174, 20230)]