201728500

素因数分解:

$2^2\times 5^3\times {\mathrm{313}}^1\times {\mathrm{1289}}^1$

素因数の和:1621

約数の個数: 48

約数和(自身を含む): 442325520

約数和(自身を除く): 240597020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 313, 500, 626, 1252, 1289, 1565, 2578, 3130, 5156, 6260, 6445, 7825, 12890, 15650, 25780, 31300, 32225, 39125, 64450, 78250, 128900, 156500, 161125, 322250, 403457, 644500, 806914, 1613828, 2017285, 4034570, 8069140, 10086425, 20172850, 40345700, 50432125, 100864250, 201728500]

約数ペア:

[(1, 201728500), (2, 100864250), (4, 50432125), (5, 40345700), (10, 20172850), (20, 10086425), (25, 8069140), (50, 4034570), (100, 2017285), (125, 1613828), (250, 806914), (313, 644500), (500, 403457), (626, 322250), (1252, 161125), (1289, 156500), (1565, 128900), (2578, 78250), (3130, 64450), (5156, 39125), (6260, 32225), (6445, 31300), (7825, 25780), (12890, 15650)]