19854620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52249}}^1$

素因数の和:52277

約数の個数: 24

約数和(自身を含む): 43890000

約数和(自身を除く): 24035380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 52249, 104498, 208996, 261245, 522490, 992731, 1044980, 1985462, 3970924, 4963655, 9927310, 19854620]

約数ペア:

[(1, 19854620), (2, 9927310), (4, 4963655), (5, 3970924), (10, 1985462), (19, 1044980), (20, 992731), (38, 522490), (76, 261245), (95, 208996), (190, 104498), (380, 52249)]