129098800

素因数分解:

$2^4\times 5^2\times {\mathrm{322747}}^1$

素因数の和:322765

約数の個数: 30

約数和(自身を含む): 310160828

約数和(自身を除く): 181062028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 322747, 645494, 1290988, 1613735, 2581976, 3227470, 5163952, 6454940, 8068675, 12909880, 16137350, 25819760, 32274700, 64549400, 129098800]

約数ペア:

[(1, 129098800), (2, 64549400), (4, 32274700), (5, 25819760), (8, 16137350), (10, 12909880), (16, 8068675), (20, 6454940), (25, 5163952), (40, 3227470), (50, 2581976), (80, 1613735), (100, 1290988), (200, 645494), (400, 322747)]