81418865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^2$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 118734336

約数和(自身を除く): 37315471

約数列:

[1, 5, 11, 17, 31, 53, 55, 85, 155, 187, 265, 341, 527, 583, 901, 935, 1643, 1705, 2635, 2809, 2915, 4505, 5797, 8215, 9911, 14045, 18073, 27931, 28985, 30899, 47753, 49555, 87079, 90365, 139655, 154495, 238765, 307241, 435395, 525283, 957869, 1480343, 1536205, 2626415, 4789345, 7401715, 16283773, 81418865]

約数ペア:

[(1, 81418865), (5, 16283773), (11, 7401715), (17, 4789345), (31, 2626415), (53, 1536205), (55, 1480343), (85, 957869), (155, 525283), (187, 435395), (265, 307241), (341, 238765), (527, 154495), (583, 139655), (901, 90365), (935, 87079), (1643, 49555), (1705, 47753), (2635, 30899), (2809, 28985), (2915, 27931), (4505, 18073), (5797, 14045), (8215, 9911)]