28288195

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 38808000

約数和(自身を除く): 10519805

約数列:

[1, 5, 13, 29, 43, 65, 145, 215, 349, 377, 559, 1247, 1745, 1885, 2795, 4537, 6235, 10121, 15007, 16211, 22685, 50605, 75035, 81055, 131573, 195091, 435203, 657865, 975455, 2176015, 5657639, 28288195]

約数ペア:

[(1, 28288195), (5, 5657639), (13, 2176015), (29, 975455), (43, 657865), (65, 435203), (145, 195091), (215, 131573), (349, 81055), (377, 75035), (559, 50605), (1247, 22685), (1745, 16211), (1885, 15007), (2795, 10121), (4537, 6235)]