19406980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51071}}^1$

素因数の和:51099

約数の個数: 24

約数和(自身を含む): 42900480

約数和(自身を除く): 23493500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 51071, 102142, 204284, 255355, 510710, 970349, 1021420, 1940698, 3881396, 4851745, 9703490, 19406980]

約数ペア:

[(1, 19406980), (2, 9703490), (4, 4851745), (5, 3881396), (10, 1940698), (19, 1021420), (20, 970349), (38, 510710), (76, 255355), (95, 204284), (190, 102142), (380, 51071)]