161421904

素因数分解:

$2^4\times 7^1\times {\mathrm{293}}^1\times {\mathrm{4919}}^1$

素因数の和:5227

約数の個数: 40

約数和(自身を含む): 358727040

約数和(自身を除く): 197305136

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 293, 586, 1172, 2051, 2344, 4102, 4688, 4919, 8204, 9838, 16408, 19676, 32816, 34433, 39352, 68866, 78704, 137732, 275464, 550928, 1441267, 2882534, 5765068, 10088869, 11530136, 20177738, 23060272, 40355476, 80710952, 161421904]

約数ペア:

[(1, 161421904), (2, 80710952), (4, 40355476), (7, 23060272), (8, 20177738), (14, 11530136), (16, 10088869), (28, 5765068), (56, 2882534), (112, 1441267), (293, 550928), (586, 275464), (1172, 137732), (2051, 78704), (2344, 68866), (4102, 39352), (4688, 34433), (4919, 32816), (8204, 19676), (9838, 16408)]