20973760

素因数分解:

$2^6\times 5^1\times {\mathrm{65543}}^1$

素因数の和:65560

約数の個数: 28

約数和(自身を含む): 49944528

約数和(自身を除く): 28970768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65543, 131086, 262172, 327715, 524344, 655430, 1048688, 1310860, 2097376, 2621720, 4194752, 5243440, 10486880, 20973760]

約数ペア:

[(1, 20973760), (2, 10486880), (4, 5243440), (5, 4194752), (8, 2621720), (10, 2097376), (16, 1310860), (20, 1048688), (32, 655430), (40, 524344), (64, 327715), (80, 262172), (160, 131086), (320, 65543)]