80987228

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{78173}}^1$

素因数の和:78221

約数の個数: 24

約数和(自身を含む): 166354272

約数和(自身を除く): 85367044

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 78173, 156346, 312692, 547211, 1094422, 2188844, 2892401, 5784802, 11569604, 20246807, 40493614, 80987228]

約数ペア:

[(1, 80987228), (2, 40493614), (4, 20246807), (7, 11569604), (14, 5784802), (28, 2892401), (37, 2188844), (74, 1094422), (148, 547211), (259, 312692), (518, 156346), (1036, 78173)]