81207800

素因数分解:

$2^3\times 5^2\times {\mathrm{151}}^1\times {\mathrm{2689}}^1$

素因数の和:2856

約数の個数: 48

約数和(自身を含む): 190129200

約数和(自身を除く): 108921400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 151, 200, 302, 604, 755, 1208, 1510, 2689, 3020, 3775, 5378, 6040, 7550, 10756, 13445, 15100, 21512, 26890, 30200, 53780, 67225, 107560, 134450, 268900, 406039, 537800, 812078, 1624156, 2030195, 3248312, 4060390, 8120780, 10150975, 16241560, 20301950, 40603900, 81207800]

約数ペア:

[(1, 81207800), (2, 40603900), (4, 20301950), (5, 16241560), (8, 10150975), (10, 8120780), (20, 4060390), (25, 3248312), (40, 2030195), (50, 1624156), (100, 812078), (151, 537800), (200, 406039), (302, 268900), (604, 134450), (755, 107560), (1208, 67225), (1510, 53780), (2689, 30200), (3020, 26890), (3775, 21512), (5378, 15100), (6040, 13445), (7550, 10756)]