201416920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1279}}^1$

素因数の和:1448

約数の個数: 64

約数和(自身を含む): 471859200

約数和(自身を除く): 270442280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 155, 248, 254, 310, 508, 620, 635, 1016, 1240, 1270, 1279, 2540, 2558, 3937, 5080, 5116, 6395, 7874, 10232, 12790, 15748, 19685, 25580, 31496, 39370, 39649, 51160, 78740, 79298, 157480, 158596, 162433, 198245, 317192, 324866, 396490, 649732, 792980, 812165, 1299464, 1585960, 1624330, 3248660, 5035423, 6497320, 10070846, 20141692, 25177115, 40283384, 50354230, 100708460, 201416920]

約数ペア:

[(1, 201416920), (2, 100708460), (4, 50354230), (5, 40283384), (8, 25177115), (10, 20141692), (20, 10070846), (31, 6497320), (40, 5035423), (62, 3248660), (124, 1624330), (127, 1585960), (155, 1299464), (248, 812165), (254, 792980), (310, 649732), (508, 396490), (620, 324866), (635, 317192), (1016, 198245), (1240, 162433), (1270, 158596), (1279, 157480), (2540, 79298), (2558, 78740), (3937, 51160), (5080, 39649), (5116, 39370), (6395, 31496), (7874, 25580), (10232, 19685), (12790, 15748)]