31404080

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4969}}^1$

素因数の和:5061

約数の個数: 40

約数和(自身を含む): 73953600

約数和(自身を除く): 42549520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 4969, 6320, 9938, 19876, 24845, 39752, 49690, 79504, 99380, 198760, 392551, 397520, 785102, 1570204, 1962755, 3140408, 3925510, 6280816, 7851020, 15702040, 31404080]

約数ペア:

[(1, 31404080), (2, 15702040), (4, 7851020), (5, 6280816), (8, 3925510), (10, 3140408), (16, 1962755), (20, 1570204), (40, 785102), (79, 397520), (80, 392551), (158, 198760), (316, 99380), (395, 79504), (632, 49690), (790, 39752), (1264, 24845), (1580, 19876), (3160, 9938), (4969, 6320)]