280780100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{147779}}^1$

素因数の和:147812

約数の個数: 36

約数和(自身を含む): 641365200

約数和(自身を除く): 360585100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 147779, 295558, 591116, 738895, 1477790, 2807801, 2955580, 3694475, 5615602, 7388950, 11231204, 14039005, 14777900, 28078010, 56156020, 70195025, 140390050, 280780100]

約数ペア:

[(1, 280780100), (2, 140390050), (4, 70195025), (5, 56156020), (10, 28078010), (19, 14777900), (20, 14039005), (25, 11231204), (38, 7388950), (50, 5615602), (76, 3694475), (95, 2955580), (100, 2807801), (190, 1477790), (380, 738895), (475, 591116), (950, 295558), (1900, 147779)]