28694780

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{4111}}^1$

素因数の和:4469

約数の個数: 24

約数和(自身を含む): 60446400

約数和(自身を除く): 31751620

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 4111, 6980, 8222, 16444, 20555, 41110, 82220, 1434739, 2869478, 5738956, 7173695, 14347390, 28694780]

約数ペア:

[(1, 28694780), (2, 14347390), (4, 7173695), (5, 5738956), (10, 2869478), (20, 1434739), (349, 82220), (698, 41110), (1396, 20555), (1745, 16444), (3490, 8222), (4111, 6980)]