20786160

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{337}}^1$

素因数の和:610

約数の個数: 80

約数和(自身を含む): 64879776

約数和(自身を除く): 44093616

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 257, 337, 514, 674, 771, 1011, 1028, 1285, 1348, 1542, 1685, 2022, 2056, 2570, 2696, 3084, 3370, 3855, 4044, 4112, 5055, 5140, 5392, 6168, 6740, 7710, 8088, 10110, 10280, 12336, 13480, 15420, 16176, 20220, 20560, 26960, 30840, 40440, 61680, 80880, 86609, 173218, 259827, 346436, 433045, 519654, 692872, 866090, 1039308, 1299135, 1385744, 1732180, 2078616, 2598270, 3464360, 4157232, 5196540, 6928720, 10393080, 20786160]

約数ペア:

[(1, 20786160), (2, 10393080), (3, 6928720), (4, 5196540), (5, 4157232), (6, 3464360), (8, 2598270), (10, 2078616), (12, 1732180), (15, 1385744), (16, 1299135), (20, 1039308), (24, 866090), (30, 692872), (40, 519654), (48, 433045), (60, 346436), (80, 259827), (120, 173218), (240, 86609), (257, 80880), (337, 61680), (514, 40440), (674, 30840), (771, 26960), (1011, 20560), (1028, 20220), (1285, 16176), (1348, 15420), (1542, 13480), (1685, 12336), (2022, 10280), (2056, 10110), (2570, 8088), (2696, 7710), (3084, 6740), (3370, 6168), (3855, 5392), (4044, 5140), (4112, 5055)]