8271640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15907}}^1$

素因数の和:15931

約数の個数: 32

約数和(自身を含む): 20044080

約数和(自身を除く): 11772440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15907, 31814, 63628, 79535, 127256, 159070, 206791, 318140, 413582, 636280, 827164, 1033955, 1654328, 2067910, 4135820, 8271640]

約数ペア:

[(1, 8271640), (2, 4135820), (4, 2067910), (5, 1654328), (8, 1033955), (10, 827164), (13, 636280), (20, 413582), (26, 318140), (40, 206791), (52, 159070), (65, 127256), (104, 79535), (130, 63628), (260, 31814), (520, 15907)]