80542400

素因数分解:

$2^6\times 5^2\times {\mathrm{71}}^1\times {\mathrm{709}}^1$

素因数の和:802

約数の個数: 84

約数和(自身を含む): 201259440

約数和(自身を除く): 120717040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 142, 160, 200, 284, 320, 355, 400, 568, 709, 710, 800, 1136, 1418, 1420, 1600, 1775, 2272, 2836, 2840, 3545, 3550, 4544, 5672, 5680, 7090, 7100, 11344, 11360, 14180, 14200, 17725, 22688, 22720, 28360, 28400, 35450, 45376, 50339, 56720, 56800, 70900, 100678, 113440, 113600, 141800, 201356, 226880, 251695, 283600, 402712, 503390, 567200, 805424, 1006780, 1134400, 1258475, 1610848, 2013560, 2516950, 3221696, 4027120, 5033900, 8054240, 10067800, 16108480, 20135600, 40271200, 80542400]

約数ペア:

[(1, 80542400), (2, 40271200), (4, 20135600), (5, 16108480), (8, 10067800), (10, 8054240), (16, 5033900), (20, 4027120), (25, 3221696), (32, 2516950), (40, 2013560), (50, 1610848), (64, 1258475), (71, 1134400), (80, 1006780), (100, 805424), (142, 567200), (160, 503390), (200, 402712), (284, 283600), (320, 251695), (355, 226880), (400, 201356), (568, 141800), (709, 113600), (710, 113440), (800, 100678), (1136, 70900), (1418, 56800), (1420, 56720), (1600, 50339), (1775, 45376), (2272, 35450), (2836, 28400), (2840, 28360), (3545, 22720), (3550, 22688), (4544, 17725), (5672, 14200), (5680, 14180), (7090, 11360), (7100, 11344)]