20440490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4787}}^1$

素因数の和:4862

約数の個数: 32

約数和(自身を含む): 42747264

約数和(自身を除く): 22306774

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 305, 427, 610, 854, 2135, 4270, 4787, 9574, 23935, 33509, 47870, 67018, 167545, 292007, 335090, 584014, 1460035, 2044049, 2920070, 4088098, 10220245, 20440490]

約数ペア:

[(1, 20440490), (2, 10220245), (5, 4088098), (7, 2920070), (10, 2044049), (14, 1460035), (35, 584014), (61, 335090), (70, 292007), (122, 167545), (305, 67018), (427, 47870), (610, 33509), (854, 23935), (2135, 9574), (4270, 4787)]