20883800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{2131}}^1$

素因数の和:2161

約数の個数: 72

約数和(自身を含む): 56508660

約数和(自身を除く): 35624860

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2131, 2450, 4262, 4900, 8524, 9800, 10655, 14917, 17048, 21310, 29834, 42620, 53275, 59668, 74585, 85240, 104419, 106550, 119336, 149170, 208838, 213100, 298340, 372925, 417676, 426200, 522095, 596680, 745850, 835352, 1044190, 1491700, 2088380, 2610475, 2983400, 4176760, 5220950, 10441900, 20883800]

約数ペア:

[(1, 20883800), (2, 10441900), (4, 5220950), (5, 4176760), (7, 2983400), (8, 2610475), (10, 2088380), (14, 1491700), (20, 1044190), (25, 835352), (28, 745850), (35, 596680), (40, 522095), (49, 426200), (50, 417676), (56, 372925), (70, 298340), (98, 213100), (100, 208838), (140, 149170), (175, 119336), (196, 106550), (200, 104419), (245, 85240), (280, 74585), (350, 59668), (392, 53275), (490, 42620), (700, 29834), (980, 21310), (1225, 17048), (1400, 14917), (1960, 10655), (2131, 9800), (2450, 8524), (4262, 4900)]