201720920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{75269}}^1$

素因数の和:75347

約数の個数: 32

約数和(自身を含む): 460652400

約数和(自身を除く): 258931480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 75269, 150538, 301076, 376345, 602152, 752690, 1505380, 3010760, 5043023, 10086046, 20172092, 25215115, 40344184, 50430230, 100860460, 201720920]

約数ペア:

[(1, 201720920), (2, 100860460), (4, 50430230), (5, 40344184), (8, 25215115), (10, 20172092), (20, 10086046), (40, 5043023), (67, 3010760), (134, 1505380), (268, 752690), (335, 602152), (536, 376345), (670, 301076), (1340, 150538), (2680, 75269)]