289610960

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{37321}}^1$

素因数の和:37431

約数の個数: 40

約数和(自身を含む): 680305416

約数和(自身を除く): 390694456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 37321, 74642, 149284, 186605, 298568, 373210, 597136, 746420, 1492840, 2985680, 3620137, 7240274, 14480548, 18100685, 28961096, 36201370, 57922192, 72402740, 144805480, 289610960]

約数ペア:

[(1, 289610960), (2, 144805480), (4, 72402740), (5, 57922192), (8, 36201370), (10, 28961096), (16, 18100685), (20, 14480548), (40, 7240274), (80, 3620137), (97, 2985680), (194, 1492840), (388, 746420), (485, 597136), (776, 373210), (970, 298568), (1552, 186605), (1940, 149284), (3880, 74642), (7760, 37321)]