20858100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{251}}^1\times {\mathrm{277}}^1$

素因数の和:545

約数の個数: 72

約数和(自身を含む): 60808608

約数和(自身を除く): 39950508

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 251, 277, 300, 502, 554, 753, 831, 1004, 1108, 1255, 1385, 1506, 1662, 2510, 2770, 3012, 3324, 3765, 4155, 5020, 5540, 6275, 6925, 7530, 8310, 12550, 13850, 15060, 16620, 18825, 20775, 25100, 27700, 37650, 41550, 69527, 75300, 83100, 139054, 208581, 278108, 347635, 417162, 695270, 834324, 1042905, 1390540, 1738175, 2085810, 3476350, 4171620, 5214525, 6952700, 10429050, 20858100]

約数ペア:

[(1, 20858100), (2, 10429050), (3, 6952700), (4, 5214525), (5, 4171620), (6, 3476350), (10, 2085810), (12, 1738175), (15, 1390540), (20, 1042905), (25, 834324), (30, 695270), (50, 417162), (60, 347635), (75, 278108), (100, 208581), (150, 139054), (251, 83100), (277, 75300), (300, 69527), (502, 41550), (554, 37650), (753, 27700), (831, 25100), (1004, 20775), (1108, 18825), (1255, 16620), (1385, 15060), (1506, 13850), (1662, 12550), (2510, 8310), (2770, 7530), (3012, 6925), (3324, 6275), (3765, 5540), (4155, 5020)]