20243480

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4643}}^1$

素因数の和:4763

約数の個数: 32

約数和(自身を含む): 45975600

約数和(自身を除く): 25732120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 4643, 9286, 18572, 23215, 37144, 46430, 92860, 185720, 506087, 1012174, 2024348, 2530435, 4048696, 5060870, 10121740, 20243480]

約数ペア:

[(1, 20243480), (2, 10121740), (4, 5060870), (5, 4048696), (8, 2530435), (10, 2024348), (20, 1012174), (40, 506087), (109, 185720), (218, 92860), (436, 46430), (545, 37144), (872, 23215), (1090, 18572), (2180, 9286), (4360, 4643)]