20793320

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{7121}}^1$

素因数の和:7205

約数の個数: 32

約数和(自身を含む): 47432520

約数和(自身を除く): 26639200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 7121, 14242, 28484, 35605, 56968, 71210, 142420, 284840, 519833, 1039666, 2079332, 2599165, 4158664, 5198330, 10396660, 20793320]

約数ペア:

[(1, 20793320), (2, 10396660), (4, 5198330), (5, 4158664), (8, 2599165), (10, 2079332), (20, 1039666), (40, 519833), (73, 284840), (146, 142420), (292, 71210), (365, 56968), (584, 35605), (730, 28484), (1460, 14242), (2920, 7121)]