19391780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51031}}^1$

素因数の和:51059

約数の個数: 24

約数和(自身を含む): 42866880

約数和(自身を除く): 23475100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 51031, 102062, 204124, 255155, 510310, 969589, 1020620, 1939178, 3878356, 4847945, 9695890, 19391780]

約数ペア:

[(1, 19391780), (2, 9695890), (4, 4847945), (5, 3878356), (10, 1939178), (19, 1020620), (20, 969589), (38, 510310), (76, 255155), (95, 204124), (190, 102062), (380, 51031)]