8813740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 20180160

約数和(自身を除く): 11366420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 311, 436, 545, 622, 1090, 1244, 1417, 1555, 2180, 2834, 3110, 4043, 5668, 6220, 7085, 8086, 14170, 16172, 20215, 28340, 33899, 40430, 67798, 80860, 135596, 169495, 338990, 440687, 677980, 881374, 1762748, 2203435, 4406870, 8813740]

約数ペア:

[(1, 8813740), (2, 4406870), (4, 2203435), (5, 1762748), (10, 881374), (13, 677980), (20, 440687), (26, 338990), (52, 169495), (65, 135596), (109, 80860), (130, 67798), (218, 40430), (260, 33899), (311, 28340), (436, 20215), (545, 16172), (622, 14170), (1090, 8086), (1244, 7085), (1417, 6220), (1555, 5668), (2180, 4043), (2834, 3110)]