81217856

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{66791}}^1$

素因数の和:66822

約数の個数: 28

約数和(自身を含む): 169651680

約数和(自身を除く): 88433824

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 608, 1216, 66791, 133582, 267164, 534328, 1068656, 1269029, 2137312, 2538058, 4274624, 5076116, 10152232, 20304464, 40608928, 81217856]

約数ペア:

[(1, 81217856), (2, 40608928), (4, 20304464), (8, 10152232), (16, 5076116), (19, 4274624), (32, 2538058), (38, 2137312), (64, 1269029), (76, 1068656), (152, 534328), (304, 267164), (608, 133582), (1216, 66791)]