30480760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{6991}}^1$

素因数の和:7111

約数の個数: 32

約数和(自身を含む): 69220800

約数和(自身を除く): 38740040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 6991, 13982, 27964, 34955, 55928, 69910, 139820, 279640, 762019, 1524038, 3048076, 3810095, 6096152, 7620190, 15240380, 30480760]

約数ペア:

[(1, 30480760), (2, 15240380), (4, 7620190), (5, 6096152), (8, 3810095), (10, 3048076), (20, 1524038), (40, 762019), (109, 279640), (218, 139820), (436, 69910), (545, 55928), (872, 34955), (1090, 27964), (2180, 13982), (4360, 6991)]