168008240

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19267}}^1$

素因数の和:19389

約数の個数: 40

約数和(自身を含む): 394223280

約数和(自身を除く): 226215040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 19267, 38534, 77068, 96335, 154136, 192670, 308272, 385340, 770680, 1541360, 2100103, 4200206, 8400412, 10500515, 16800824, 21001030, 33601648, 42002060, 84004120, 168008240]

約数ペア:

[(1, 168008240), (2, 84004120), (4, 42002060), (5, 33601648), (8, 21001030), (10, 16800824), (16, 10500515), (20, 8400412), (40, 4200206), (80, 2100103), (109, 1541360), (218, 770680), (436, 385340), (545, 308272), (872, 192670), (1090, 154136), (1744, 96335), (2180, 77068), (4360, 38534), (8720, 19267)]