19976980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52571}}^1$

素因数の和:52599

約数の個数: 24

約数和(自身を含む): 44160480

約数和(自身を除く): 24183500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 52571, 105142, 210284, 262855, 525710, 998849, 1051420, 1997698, 3995396, 4994245, 9988490, 19976980]

約数ペア:

[(1, 19976980), (2, 9988490), (4, 4994245), (5, 3995396), (10, 1997698), (19, 1051420), (20, 998849), (38, 525710), (76, 262855), (95, 210284), (190, 105142), (380, 52571)]