201901780

素因数分解:

$2^2\times 5^1\times {\mathrm{2039}}^1\times {\mathrm{4951}}^1$

素因数の和:6999

約数の個数: 24

約数和(自身を含む): 424287360

約数和(自身を除く): 222385580

約数列:

[1, 2, 4, 5, 10, 20, 2039, 4078, 4951, 8156, 9902, 10195, 19804, 20390, 24755, 40780, 49510, 99020, 10095089, 20190178, 40380356, 50475445, 100950890, 201901780]

約数ペア:

[(1, 201901780), (2, 100950890), (4, 50475445), (5, 40380356), (10, 20190178), (20, 10095089), (2039, 99020), (4078, 49510), (4951, 40780), (8156, 24755), (9902, 20390), (10195, 19804)]