281438500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:638

約数の個数: 96

約数和(自身を含む): 707825664

約数和(自身を除く): 426387164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 191, 250, 350, 382, 421, 500, 700, 764, 842, 875, 955, 1337, 1684, 1750, 1910, 2105, 2674, 2947, 3500, 3820, 4210, 4775, 5348, 5894, 6685, 8420, 9550, 10525, 11788, 13370, 14735, 19100, 21050, 23875, 26740, 29470, 33425, 42100, 47750, 52625, 58940, 66850, 73675, 80411, 95500, 105250, 133700, 147350, 160822, 167125, 210500, 294700, 321644, 334250, 368375, 402055, 562877, 668500, 736750, 804110, 1125754, 1473500, 1608220, 2010275, 2251508, 2814385, 4020550, 5628770, 8041100, 10051375, 11257540, 14071925, 20102750, 28143850, 40205500, 56287700, 70359625, 140719250, 281438500]

約数ペア:

[(1, 281438500), (2, 140719250), (4, 70359625), (5, 56287700), (7, 40205500), (10, 28143850), (14, 20102750), (20, 14071925), (25, 11257540), (28, 10051375), (35, 8041100), (50, 5628770), (70, 4020550), (100, 2814385), (125, 2251508), (140, 2010275), (175, 1608220), (191, 1473500), (250, 1125754), (350, 804110), (382, 736750), (421, 668500), (500, 562877), (700, 402055), (764, 368375), (842, 334250), (875, 321644), (955, 294700), (1337, 210500), (1684, 167125), (1750, 160822), (1910, 147350), (2105, 133700), (2674, 105250), (2947, 95500), (3500, 80411), (3820, 73675), (4210, 66850), (4775, 58940), (5348, 52625), (5894, 47750), (6685, 42100), (8420, 33425), (9550, 29470), (10525, 26740), (11788, 23875), (13370, 21050), (14735, 19100)]