20046250

素因数分解:

$2^1\times 5^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:137

約数の個数: 80

約数和(自身を含む): 44985600

約数和(自身を除く): 24939350

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 50, 58, 70, 79, 125, 145, 158, 175, 203, 250, 290, 350, 395, 406, 553, 625, 725, 790, 875, 1015, 1106, 1250, 1450, 1750, 1975, 2030, 2291, 2765, 3625, 3950, 4375, 4582, 5075, 5530, 7250, 8750, 9875, 10150, 11455, 13825, 16037, 18125, 19750, 22910, 25375, 27650, 32074, 36250, 49375, 50750, 57275, 69125, 80185, 98750, 114550, 126875, 138250, 160370, 253750, 286375, 345625, 400925, 572750, 691250, 801850, 1431875, 2004625, 2863750, 4009250, 10023125, 20046250]

約数ペア:

[(1, 20046250), (2, 10023125), (5, 4009250), (7, 2863750), (10, 2004625), (14, 1431875), (25, 801850), (29, 691250), (35, 572750), (50, 400925), (58, 345625), (70, 286375), (79, 253750), (125, 160370), (145, 138250), (158, 126875), (175, 114550), (203, 98750), (250, 80185), (290, 69125), (350, 57275), (395, 50750), (406, 49375), (553, 36250), (625, 32074), (725, 27650), (790, 25375), (875, 22910), (1015, 19750), (1106, 18125), (1250, 16037), (1450, 13825), (1750, 11455), (1975, 10150), (2030, 9875), (2291, 8750), (2765, 7250), (3625, 5530), (3950, 5075), (4375, 4582)]