214920500

素因数分解:

$2^2\times 5^3\times {\mathrm{421}}^1\times {\mathrm{1021}}^1$

素因数の和:1461

約数の個数: 48

約数和(自身を含む): 470962128

約数和(自身を除く): 256041628

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 421, 500, 842, 1021, 1684, 2042, 2105, 4084, 4210, 5105, 8420, 10210, 10525, 20420, 21050, 25525, 42100, 51050, 52625, 102100, 105250, 127625, 210500, 255250, 429841, 510500, 859682, 1719364, 2149205, 4298410, 8596820, 10746025, 21492050, 42984100, 53730125, 107460250, 214920500]

約数ペア:

[(1, 214920500), (2, 107460250), (4, 53730125), (5, 42984100), (10, 21492050), (20, 10746025), (25, 8596820), (50, 4298410), (100, 2149205), (125, 1719364), (250, 859682), (421, 510500), (500, 429841), (842, 255250), (1021, 210500), (1684, 127625), (2042, 105250), (2105, 102100), (4084, 52625), (4210, 51050), (5105, 42100), (8420, 25525), (10210, 21050), (10525, 20420)]