388290440

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{15733}}^1$

素因数の和:16361

約数の個数: 32

約数和(自身を含む): 875125080

約数和(自身を除く): 486834640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1234, 2468, 3085, 4936, 6170, 12340, 15733, 24680, 31466, 62932, 78665, 125864, 157330, 314660, 629320, 9707261, 19414522, 38829044, 48536305, 77658088, 97072610, 194145220, 388290440]

約数ペア:

[(1, 388290440), (2, 194145220), (4, 97072610), (5, 77658088), (8, 48536305), (10, 38829044), (20, 19414522), (40, 9707261), (617, 629320), (1234, 314660), (2468, 157330), (3085, 125864), (4936, 78665), (6170, 62932), (12340, 31466), (15733, 24680)]