26815280

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4721}}^1$

素因数の和:4805

約数の個数: 40

約数和(自身を含む): 63237024

約数和(自身を除く): 36421744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 4721, 5680, 9442, 18884, 23605, 37768, 47210, 75536, 94420, 188840, 335191, 377680, 670382, 1340764, 1675955, 2681528, 3351910, 5363056, 6703820, 13407640, 26815280]

約数ペア:

[(1, 26815280), (2, 13407640), (4, 6703820), (5, 5363056), (8, 3351910), (10, 2681528), (16, 1675955), (20, 1340764), (40, 670382), (71, 377680), (80, 335191), (142, 188840), (284, 94420), (355, 75536), (568, 47210), (710, 37768), (1136, 23605), (1420, 18884), (2840, 9442), (4721, 5680)]