204076280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{2011}}^1$

素因数の和:2124

約数の個数: 64

約数和(自身を含む): 478051200

約数和(自身を除く): 273974920

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, 2011, 2360, 2537, 4022, 5074, 8044, 10055, 10148, 12685, 16088, 20110, 20296, 25370, 40220, 50740, 80440, 86473, 101480, 118649, 172946, 237298, 345892, 432365, 474596, 593245, 691784, 864730, 949192, 1186490, 1729460, 2372980, 3458920, 4745960, 5101907, 10203814, 20407628, 25509535, 40815256, 51019070, 102038140, 204076280]

約数ペア:

[(1, 204076280), (2, 102038140), (4, 51019070), (5, 40815256), (8, 25509535), (10, 20407628), (20, 10203814), (40, 5101907), (43, 4745960), (59, 3458920), (86, 2372980), (118, 1729460), (172, 1186490), (215, 949192), (236, 864730), (295, 691784), (344, 593245), (430, 474596), (472, 432365), (590, 345892), (860, 237298), (1180, 172946), (1720, 118649), (2011, 101480), (2360, 86473), (2537, 80440), (4022, 50740), (5074, 40220), (8044, 25370), (10055, 20296), (10148, 20110), (12685, 16088)]