20840880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86837}}^1$

素因数の和:86853

約数の個数: 40

約数和(自身を含む): 64607472

約数和(自身を除く): 43766592

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86837, 173674, 260511, 347348, 434185, 521022, 694696, 868370, 1042044, 1302555, 1389392, 1736740, 2084088, 2605110, 3473480, 4168176, 5210220, 6946960, 10420440, 20840880]

約数ペア:

[(1, 20840880), (2, 10420440), (3, 6946960), (4, 5210220), (5, 4168176), (6, 3473480), (8, 2605110), (10, 2084088), (12, 1736740), (15, 1389392), (16, 1302555), (20, 1042044), (24, 868370), (30, 694696), (40, 521022), (48, 434185), (60, 347348), (80, 260511), (120, 173674), (240, 86837)]