81420928

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{33479}}^1$

素因数の和:33512

約数の個数: 32

約数和(自身を含む): 170748000

約数和(自身を除く): 89327072

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 304, 608, 1216, 2432, 33479, 66958, 133916, 267832, 535664, 636101, 1071328, 1272202, 2142656, 2544404, 4285312, 5088808, 10177616, 20355232, 40710464, 81420928]

約数ペア:

[(1, 81420928), (2, 40710464), (4, 20355232), (8, 10177616), (16, 5088808), (19, 4285312), (32, 2544404), (38, 2142656), (64, 1272202), (76, 1071328), (128, 636101), (152, 535664), (304, 267832), (608, 133916), (1216, 66958), (2432, 33479)]