81865320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{3463}}^1$

素因数の和:3674

約数の個数: 64

約数和(自身を含む): 246913920

約数和(自身を除く): 165048600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 197, 394, 591, 788, 985, 1182, 1576, 1970, 2364, 2955, 3463, 3940, 4728, 5910, 6926, 7880, 10389, 11820, 13852, 17315, 20778, 23640, 27704, 34630, 41556, 51945, 69260, 83112, 103890, 138520, 207780, 415560, 682211, 1364422, 2046633, 2728844, 3411055, 4093266, 5457688, 6822110, 8186532, 10233165, 13644220, 16373064, 20466330, 27288440, 40932660, 81865320]

約数ペア:

[(1, 81865320), (2, 40932660), (3, 27288440), (4, 20466330), (5, 16373064), (6, 13644220), (8, 10233165), (10, 8186532), (12, 6822110), (15, 5457688), (20, 4093266), (24, 3411055), (30, 2728844), (40, 2046633), (60, 1364422), (120, 682211), (197, 415560), (394, 207780), (591, 138520), (788, 103890), (985, 83112), (1182, 69260), (1576, 51945), (1970, 41556), (2364, 34630), (2955, 27704), (3463, 23640), (3940, 20778), (4728, 17315), (5910, 13852), (6926, 11820), (7880, 10389)]