2660540

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{971}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 5633712

約数和(自身を除く): 2973172

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 971, 1370, 1942, 2740, 3884, 4855, 9710, 19420, 133027, 266054, 532108, 665135, 1330270, 2660540]

約数ペア:

[(1, 2660540), (2, 1330270), (4, 665135), (5, 532108), (10, 266054), (20, 133027), (137, 19420), (274, 9710), (548, 4855), (685, 3884), (971, 2740), (1370, 1942)]