1291225256

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{66889}}^1$

素因数の和:67041

約数の個数: 32

約数和(自身を含む): 2568576000

約数和(自身を除く): 1277350744

約数列:

[1, 2, 4, 8, 19, 38, 76, 127, 152, 254, 508, 1016, 2413, 4826, 9652, 19304, 66889, 133778, 267556, 535112, 1270891, 2541782, 5083564, 8494903, 10167128, 16989806, 33979612, 67959224, 161403157, 322806314, 645612628, 1291225256]

約数ペア:

[(1, 1291225256), (2, 645612628), (4, 322806314), (8, 161403157), (19, 67959224), (38, 33979612), (76, 16989806), (127, 10167128), (152, 8494903), (254, 5083564), (508, 2541782), (1016, 1270891), (2413, 535112), (4826, 267556), (9652, 133778), (19304, 66889)]