66503980

素因数分解:

$2^2\times 5^1\times {\mathrm{1319}}^1\times {\mathrm{2521}}^1$

素因数の和:3849

約数の個数: 24

約数和(自身を含む): 139819680

約数和(自身を除く): 73315700

約数列:

[1, 2, 4, 5, 10, 20, 1319, 2521, 2638, 5042, 5276, 6595, 10084, 12605, 13190, 25210, 26380, 50420, 3325199, 6650398, 13300796, 16625995, 33251990, 66503980]

約数ペア:

[(1, 66503980), (2, 33251990), (4, 16625995), (5, 13300796), (10, 6650398), (20, 3325199), (1319, 50420), (2521, 26380), (2638, 25210), (5042, 13190), (5276, 12605), (6595, 10084)]