20004320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:412

約数の個数: 96

約数和(自身を含む): 55194048

約数和(自身を除く): 35189728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 53, 56, 70, 80, 106, 112, 140, 160, 212, 224, 265, 280, 337, 371, 424, 530, 560, 674, 742, 848, 1060, 1120, 1348, 1484, 1685, 1696, 1855, 2120, 2359, 2696, 2968, 3370, 3710, 4240, 4718, 5392, 5936, 6740, 7420, 8480, 9436, 10784, 11795, 11872, 13480, 14840, 17861, 18872, 23590, 26960, 29680, 35722, 37744, 47180, 53920, 59360, 71444, 75488, 89305, 94360, 125027, 142888, 178610, 188720, 250054, 285776, 357220, 377440, 500108, 571552, 625135, 714440, 1000216, 1250270, 1428880, 2000432, 2500540, 2857760, 4000864, 5001080, 10002160, 20004320]

約数ペア:

[(1, 20004320), (2, 10002160), (4, 5001080), (5, 4000864), (7, 2857760), (8, 2500540), (10, 2000432), (14, 1428880), (16, 1250270), (20, 1000216), (28, 714440), (32, 625135), (35, 571552), (40, 500108), (53, 377440), (56, 357220), (70, 285776), (80, 250054), (106, 188720), (112, 178610), (140, 142888), (160, 125027), (212, 94360), (224, 89305), (265, 75488), (280, 71444), (337, 59360), (371, 53920), (424, 47180), (530, 37744), (560, 35722), (674, 29680), (742, 26960), (848, 23590), (1060, 18872), (1120, 17861), (1348, 14840), (1484, 13480), (1685, 11872), (1696, 11795), (1855, 10784), (2120, 9436), (2359, 8480), (2696, 7420), (2968, 6740), (3370, 5936), (3710, 5392), (4240, 4718)]