68277720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{81283}}^1$

素因数の和:81304

約数の個数: 64

約数和(自身を含む): 234097920

約数和(自身を除く): 165820200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 81283, 162566, 243849, 325132, 406415, 487698, 568981, 650264, 812830, 975396, 1137962, 1219245, 1625660, 1706943, 1950792, 2275924, 2438490, 2844905, 3251320, 3413886, 4551848, 4876980, 5689810, 6827772, 8534715, 9753960, 11379620, 13655544, 17069430, 22759240, 34138860, 68277720]

約数ペア:

[(1, 68277720), (2, 34138860), (3, 22759240), (4, 17069430), (5, 13655544), (6, 11379620), (7, 9753960), (8, 8534715), (10, 6827772), (12, 5689810), (14, 4876980), (15, 4551848), (20, 3413886), (21, 3251320), (24, 2844905), (28, 2438490), (30, 2275924), (35, 1950792), (40, 1706943), (42, 1625660), (56, 1219245), (60, 1137962), (70, 975396), (84, 812830), (105, 650264), (120, 568981), (140, 487698), (168, 406415), (210, 325132), (280, 243849), (420, 162566), (840, 81283)]