15451220

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{941}}^1$

素因数の和:1771

約数の個数: 24

約数和(自身を含む): 32521608

約数和(自身を除く): 17070388

約数列:

[1, 2, 4, 5, 10, 20, 821, 941, 1642, 1882, 3284, 3764, 4105, 4705, 8210, 9410, 16420, 18820, 772561, 1545122, 3090244, 3862805, 7725610, 15451220]

約数ペア:

[(1, 15451220), (2, 7725610), (4, 3862805), (5, 3090244), (10, 1545122), (20, 772561), (821, 18820), (941, 16420), (1642, 9410), (1882, 8210), (3284, 4705), (3764, 4105)]