12578960

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1621}}^1$

素因数の和:1731

約数の個数: 40

約数和(自身を含む): 29565816

約数和(自身を除く): 16986856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1621, 1940, 3242, 3880, 6484, 7760, 8105, 12968, 16210, 25936, 32420, 64840, 129680, 157237, 314474, 628948, 786185, 1257896, 1572370, 2515792, 3144740, 6289480, 12578960]

約数ペア:

[(1, 12578960), (2, 6289480), (4, 3144740), (5, 2515792), (8, 1572370), (10, 1257896), (16, 786185), (20, 628948), (40, 314474), (80, 157237), (97, 129680), (194, 64840), (388, 32420), (485, 25936), (776, 16210), (970, 12968), (1552, 8105), (1621, 7760), (1940, 6484), (3242, 3880)]