65683480

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1657}}^1$

素因数の和:2659

約数の個数: 32

約数和(自身を含む): 148026240

約数和(自身を除く): 82342760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1657, 1982, 3314, 3964, 4955, 6628, 7928, 8285, 9910, 13256, 16570, 19820, 33140, 39640, 66280, 1642087, 3284174, 6568348, 8210435, 13136696, 16420870, 32841740, 65683480]

約数ペア:

[(1, 65683480), (2, 32841740), (4, 16420870), (5, 13136696), (8, 8210435), (10, 6568348), (20, 3284174), (40, 1642087), (991, 66280), (1657, 39640), (1982, 33140), (3314, 19820), (3964, 16570), (4955, 13256), (6628, 9910), (7928, 8285)]