20478816

素因数分解:

$2^5\times 3^2\times {\mathrm{211}}^1\times {\mathrm{337}}^1$

素因数の和:564

約数の個数: 72

約数和(自身を含む): 58686264

約数和(自身を除く): 38207448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 211, 288, 337, 422, 633, 674, 844, 1011, 1266, 1348, 1688, 1899, 2022, 2532, 2696, 3033, 3376, 3798, 4044, 5064, 5392, 6066, 6752, 7596, 8088, 10128, 10784, 12132, 15192, 16176, 20256, 24264, 30384, 32352, 48528, 60768, 71107, 97056, 142214, 213321, 284428, 426642, 568856, 639963, 853284, 1137712, 1279926, 1706568, 2275424, 2559852, 3413136, 5119704, 6826272, 10239408, 20478816]

約数ペア:

[(1, 20478816), (2, 10239408), (3, 6826272), (4, 5119704), (6, 3413136), (8, 2559852), (9, 2275424), (12, 1706568), (16, 1279926), (18, 1137712), (24, 853284), (32, 639963), (36, 568856), (48, 426642), (72, 284428), (96, 213321), (144, 142214), (211, 97056), (288, 71107), (337, 60768), (422, 48528), (633, 32352), (674, 30384), (844, 24264), (1011, 20256), (1266, 16176), (1348, 15192), (1688, 12132), (1899, 10784), (2022, 10128), (2532, 8088), (2696, 7596), (3033, 6752), (3376, 6066), (3798, 5392), (4044, 5064)]