13242280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7699}}^1$

素因数の和:7753

約数の個数: 32

約数和(自身を含む): 30492000

約数和(自身を除く): 17249720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7699, 15398, 30796, 38495, 61592, 76990, 153980, 307960, 331057, 662114, 1324228, 1655285, 2648456, 3310570, 6621140, 13242280]

約数ペア:

[(1, 13242280), (2, 6621140), (4, 3310570), (5, 2648456), (8, 1655285), (10, 1324228), (20, 662114), (40, 331057), (43, 307960), (86, 153980), (172, 76990), (215, 61592), (344, 38495), (430, 30796), (860, 15398), (1720, 7699)]