891212410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{188417}}^1$

素因数の和:188478

約数の個数: 32

約数和(自身を含む): 1790724672

約数和(自身を除く): 899512262

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 4730, 188417, 376834, 942085, 1884170, 2072587, 4145174, 8101931, 10362935, 16203862, 20725870, 40509655, 81019310, 89121241, 178242482, 445606205, 891212410]

約数ペア:

[(1, 891212410), (2, 445606205), (5, 178242482), (10, 89121241), (11, 81019310), (22, 40509655), (43, 20725870), (55, 16203862), (86, 10362935), (110, 8101931), (215, 4145174), (430, 2072587), (473, 1884170), (946, 942085), (2365, 376834), (4730, 188417)]