81505228

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{11239}}^1$

素因数の和:11294

約数の個数: 36

約数和(自身を含む): 170420880

約数和(自身を除く): 88915652

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 518, 1036, 1813, 3626, 7252, 11239, 22478, 44956, 78673, 157346, 314692, 415843, 550711, 831686, 1101422, 1663372, 2202844, 2910901, 5821802, 11643604, 20376307, 40752614, 81505228]

約数ペア:

[(1, 81505228), (2, 40752614), (4, 20376307), (7, 11643604), (14, 5821802), (28, 2910901), (37, 2202844), (49, 1663372), (74, 1101422), (98, 831686), (148, 550711), (196, 415843), (259, 314692), (518, 157346), (1036, 78673), (1813, 44956), (3626, 22478), (7252, 11239)]