39881320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{263}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 95800320

約数和(自身を除く): 55919000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 223, 263, 340, 446, 526, 680, 892, 1052, 1115, 1315, 1784, 2104, 2230, 2630, 3791, 4460, 4471, 5260, 7582, 8920, 8942, 10520, 15164, 17884, 18955, 22355, 30328, 35768, 37910, 44710, 58649, 75820, 89420, 117298, 151640, 178840, 234596, 293245, 469192, 586490, 997033, 1172980, 1994066, 2345960, 3988132, 4985165, 7976264, 9970330, 19940660, 39881320]

約数ペア:

[(1, 39881320), (2, 19940660), (4, 9970330), (5, 7976264), (8, 4985165), (10, 3988132), (17, 2345960), (20, 1994066), (34, 1172980), (40, 997033), (68, 586490), (85, 469192), (136, 293245), (170, 234596), (223, 178840), (263, 151640), (340, 117298), (446, 89420), (526, 75820), (680, 58649), (892, 44710), (1052, 37910), (1115, 35768), (1315, 30328), (1784, 22355), (2104, 18955), (2230, 17884), (2630, 15164), (3791, 10520), (4460, 8942), (4471, 8920), (5260, 7582)]