1285757740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{63841}}^1$

素因数の和:63922

約数の個数: 48

約数和(自身を含む): 2895873120

約数和(自身を除く): 1610115380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 76, 95, 106, 190, 212, 265, 380, 530, 1007, 1060, 2014, 4028, 5035, 10070, 20140, 63841, 127682, 255364, 319205, 638410, 1212979, 1276820, 2425958, 3383573, 4851916, 6064895, 6767146, 12129790, 13534292, 16917865, 24259580, 33835730, 64287887, 67671460, 128575774, 257151548, 321439435, 642878870, 1285757740]

約数ペア:

[(1, 1285757740), (2, 642878870), (4, 321439435), (5, 257151548), (10, 128575774), (19, 67671460), (20, 64287887), (38, 33835730), (53, 24259580), (76, 16917865), (95, 13534292), (106, 12129790), (190, 6767146), (212, 6064895), (265, 4851916), (380, 3383573), (530, 2425958), (1007, 1276820), (1060, 1212979), (2014, 638410), (4028, 319205), (5035, 255364), (10070, 127682), (20140, 63841)]