81879672

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{3271}}^1$

素因数の和:3436

約数の個数: 64

約数和(自身を含む): 235584000

約数和(自身を除く): 153704328

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 149, 168, 298, 447, 596, 894, 1043, 1192, 1788, 2086, 3129, 3271, 3576, 4172, 6258, 6542, 8344, 9813, 12516, 13084, 19626, 22897, 25032, 26168, 39252, 45794, 68691, 78504, 91588, 137382, 183176, 274764, 487379, 549528, 974758, 1462137, 1949516, 2924274, 3411653, 3899032, 5848548, 6823306, 10234959, 11697096, 13646612, 20469918, 27293224, 40939836, 81879672]

約数ペア:

[(1, 81879672), (2, 40939836), (3, 27293224), (4, 20469918), (6, 13646612), (7, 11697096), (8, 10234959), (12, 6823306), (14, 5848548), (21, 3899032), (24, 3411653), (28, 2924274), (42, 1949516), (56, 1462137), (84, 974758), (149, 549528), (168, 487379), (298, 274764), (447, 183176), (596, 137382), (894, 91588), (1043, 78504), (1192, 68691), (1788, 45794), (2086, 39252), (3129, 26168), (3271, 25032), (3576, 22897), (4172, 19626), (6258, 13084), (6542, 12516), (8344, 9813)]