289928360

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{2857}}^1$

素因数の和:2970

約数の個数: 64

約数和(自身を含む): 679060800

約数和(自身を除く): 389132440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 59, 86, 118, 172, 215, 236, 295, 344, 430, 472, 590, 860, 1180, 1720, 2360, 2537, 2857, 5074, 5714, 10148, 11428, 12685, 14285, 20296, 22856, 25370, 28570, 50740, 57140, 101480, 114280, 122851, 168563, 245702, 337126, 491404, 614255, 674252, 842815, 982808, 1228510, 1348504, 1685630, 2457020, 3371260, 4914040, 6742520, 7248209, 14496418, 28992836, 36241045, 57985672, 72482090, 144964180, 289928360]

約数ペア:

[(1, 289928360), (2, 144964180), (4, 72482090), (5, 57985672), (8, 36241045), (10, 28992836), (20, 14496418), (40, 7248209), (43, 6742520), (59, 4914040), (86, 3371260), (118, 2457020), (172, 1685630), (215, 1348504), (236, 1228510), (295, 982808), (344, 842815), (430, 674252), (472, 614255), (590, 491404), (860, 337126), (1180, 245702), (1720, 168563), (2360, 122851), (2537, 114280), (2857, 101480), (5074, 57140), (5714, 50740), (10148, 28570), (11428, 25370), (12685, 22856), (14285, 20296)]