12588040

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{809}}^1$

素因数の和:1209

約数の個数: 32

約数和(自身を含む): 28431000

約数和(自身を除く): 15842960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 809, 1556, 1618, 1945, 3112, 3236, 3890, 4045, 6472, 7780, 8090, 15560, 16180, 32360, 314701, 629402, 1258804, 1573505, 2517608, 3147010, 6294020, 12588040]

約数ペア:

[(1, 12588040), (2, 6294020), (4, 3147010), (5, 2517608), (8, 1573505), (10, 1258804), (20, 629402), (40, 314701), (389, 32360), (778, 16180), (809, 15560), (1556, 8090), (1618, 7780), (1945, 6472), (3112, 4045), (3236, 3890)]