19664620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51749}}^1$

素因数の和:51777

約数の個数: 24

約数和(自身を含む): 43470000

約数和(自身を除く): 23805380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 51749, 103498, 206996, 258745, 517490, 983231, 1034980, 1966462, 3932924, 4916155, 9832310, 19664620]

約数ペア:

[(1, 19664620), (2, 9832310), (4, 4916155), (5, 3932924), (10, 1966462), (19, 1034980), (20, 983231), (38, 517490), (76, 258745), (95, 206996), (190, 103498), (380, 51749)]