160640260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{16981}}^1$

素因数の和:17044

約数の個数: 48

約数和(自身を含む): 376592832

約数和(自身を除く): 215952572

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 16981, 33962, 67924, 84905, 169810, 186791, 339620, 373582, 730183, 747164, 933955, 1460366, 1867910, 2920732, 3650915, 3735820, 7301830, 8032013, 14603660, 16064026, 32128052, 40160065, 80320130, 160640260]

約数ペア:

[(1, 160640260), (2, 80320130), (4, 40160065), (5, 32128052), (10, 16064026), (11, 14603660), (20, 8032013), (22, 7301830), (43, 3735820), (44, 3650915), (55, 2920732), (86, 1867910), (110, 1460366), (172, 933955), (215, 747164), (220, 730183), (430, 373582), (473, 339620), (860, 186791), (946, 169810), (1892, 84905), (2365, 67924), (4730, 33962), (9460, 16981)]