28219340

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{4451}}^1$

素因数の和:4777

約数の個数: 24

約数和(自身を含む): 59460912

約数和(自身を除く): 31241572

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 4451, 6340, 8902, 17804, 22255, 44510, 89020, 1410967, 2821934, 5643868, 7054835, 14109670, 28219340]

約数ペア:

[(1, 28219340), (2, 14109670), (4, 7054835), (5, 5643868), (10, 2821934), (20, 1410967), (317, 89020), (634, 44510), (1268, 22255), (1585, 17804), (3170, 8902), (4451, 6340)]