81021730

素因数分解:

$2^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{54377}}^1$

素因数の和:54533

約数の個数: 16

約数和(自身を含む): 146820600

約数和(自身を除く): 65798870

約数列:

[1, 2, 5, 10, 149, 298, 745, 1490, 54377, 108754, 271885, 543770, 8102173, 16204346, 40510865, 81021730]

約数ペア:

[(1, 81021730), (2, 40510865), (5, 16204346), (10, 8102173), (149, 543770), (298, 271885), (745, 108754), (1490, 54377)]