12747880

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{757}}^1$

素因数の和:1189

約数の個数: 32

約数和(自身を含む): 28788840

約数和(自身を除く): 16040960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 757, 842, 1514, 1684, 2105, 3028, 3368, 3785, 4210, 6056, 7570, 8420, 15140, 16840, 30280, 318697, 637394, 1274788, 1593485, 2549576, 3186970, 6373940, 12747880]

約数ペア:

[(1, 12747880), (2, 6373940), (4, 3186970), (5, 2549576), (8, 1593485), (10, 1274788), (20, 637394), (40, 318697), (421, 30280), (757, 16840), (842, 15140), (1514, 8420), (1684, 7570), (2105, 6056), (3028, 4210), (3368, 3785)]