209561520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{124739}}^1$

素因数の和:124762

約数の個数: 80

約数和(自身を含む): 742452480

約数和(自身を除く): 532890960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 124739, 249478, 374217, 498956, 623695, 748434, 873173, 997912, 1247390, 1496868, 1746346, 1871085, 1995824, 2494780, 2619519, 2993736, 3492692, 3742170, 4365865, 4989560, 5239038, 5987472, 6985384, 7484340, 8731730, 9979120, 10478076, 13097595, 13970768, 14968680, 17463460, 20956152, 26195190, 29937360, 34926920, 41912304, 52390380, 69853840, 104780760, 209561520]

約数ペア:

[(1, 209561520), (2, 104780760), (3, 69853840), (4, 52390380), (5, 41912304), (6, 34926920), (7, 29937360), (8, 26195190), (10, 20956152), (12, 17463460), (14, 14968680), (15, 13970768), (16, 13097595), (20, 10478076), (21, 9979120), (24, 8731730), (28, 7484340), (30, 6985384), (35, 5987472), (40, 5239038), (42, 4989560), (48, 4365865), (56, 3742170), (60, 3492692), (70, 2993736), (80, 2619519), (84, 2494780), (105, 1995824), (112, 1871085), (120, 1746346), (140, 1496868), (168, 1247390), (210, 997912), (240, 873173), (280, 748434), (336, 623695), (420, 498956), (560, 374217), (840, 249478), (1680, 124739)]