81531248

素因数分解:

$2^4\times {\mathrm{1609}}^1\times {\mathrm{3167}}^1$

素因数の和:4784

約数の個数: 20

約数和(自身を含む): 158114880

約数和(自身を除く): 76583632

約数列:

[1, 2, 4, 8, 16, 1609, 3167, 3218, 6334, 6436, 12668, 12872, 25336, 25744, 50672, 5095703, 10191406, 20382812, 40765624, 81531248]

約数ペア:

[(1, 81531248), (2, 40765624), (4, 20382812), (8, 10191406), (16, 5095703), (1609, 50672), (3167, 25744), (3218, 25336), (6334, 12872), (6436, 12668)]