21446720

素因数分解:

$2^6\times 5^1\times {\mathrm{67021}}^1$

素因数の和:67038

約数の個数: 28

約数和(自身を含む): 51070764

約数和(自身を除く): 29624044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 67021, 134042, 268084, 335105, 536168, 670210, 1072336, 1340420, 2144672, 2680840, 4289344, 5361680, 10723360, 21446720]

約数ペア:

[(1, 21446720), (2, 10723360), (4, 5361680), (5, 4289344), (8, 2680840), (10, 2144672), (16, 1340420), (20, 1072336), (32, 670210), (40, 536168), (64, 335105), (80, 268084), (160, 134042), (320, 67021)]