16387220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26431}}^1$

素因数の和:26471

約数の個数: 24

約数和(自身を含む): 35524608

約数和(自身を除く): 19137388

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 26431, 52862, 105724, 132155, 264310, 528620, 819361, 1638722, 3277444, 4096805, 8193610, 16387220]

約数ペア:

[(1, 16387220), (2, 8193610), (4, 4096805), (5, 3277444), (10, 1638722), (20, 819361), (31, 528620), (62, 264310), (124, 132155), (155, 105724), (310, 52862), (620, 26431)]