81718544

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{268811}}^1$

素因数の和:268838

約数の個数: 20

約数和(自身を含む): 166663440

約数和(自身を除く): 84944896

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 268811, 537622, 1075244, 2150488, 4300976, 5107409, 10214818, 20429636, 40859272, 81718544]

約数ペア:

[(1, 81718544), (2, 40859272), (4, 20429636), (8, 10214818), (16, 5107409), (19, 4300976), (38, 2150488), (76, 1075244), (152, 537622), (304, 268811)]