1900756880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2159951}}^1$

素因数の和:2159975

約数の個数: 40

約数和(自身を含む): 4821012864

約数和(自身を除く): 2920255984

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2159951, 4319902, 8639804, 10799755, 17279608, 21599510, 23759461, 34559216, 43199020, 47518922, 86398040, 95037844, 118797305, 172796080, 190075688, 237594610, 380151376, 475189220, 950378440, 1900756880]

約数ペア:

[(1, 1900756880), (2, 950378440), (4, 475189220), (5, 380151376), (8, 237594610), (10, 190075688), (11, 172796080), (16, 118797305), (20, 95037844), (22, 86398040), (40, 47518922), (44, 43199020), (55, 34559216), (80, 23759461), (88, 21599510), (110, 17279608), (176, 10799755), (220, 8639804), (440, 4319902), (880, 2159951)]