168739820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{2143}}^1$

素因数の和:2310

約数の個数: 48

約数和(自身を含む): 368836608

約数和(自身を除く): 200096788

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 127, 155, 254, 310, 508, 620, 635, 1270, 2143, 2540, 3937, 4286, 7874, 8572, 10715, 15748, 19685, 21430, 39370, 42860, 66433, 78740, 132866, 265732, 272161, 332165, 544322, 664330, 1088644, 1328660, 1360805, 2721610, 5443220, 8436991, 16873982, 33747964, 42184955, 84369910, 168739820]

約数ペア:

[(1, 168739820), (2, 84369910), (4, 42184955), (5, 33747964), (10, 16873982), (20, 8436991), (31, 5443220), (62, 2721610), (124, 1360805), (127, 1328660), (155, 1088644), (254, 664330), (310, 544322), (508, 332165), (620, 272161), (635, 265732), (1270, 132866), (2143, 78740), (2540, 66433), (3937, 42860), (4286, 39370), (7874, 21430), (8572, 19685), (10715, 15748)]