20161392920

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1\times {\mathrm{53129}}^1$

素因数の和:53372

約数の個数: 64

約数和(自身を含む): 46478124000

約数和(自身を除く): 26316731080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 179, 212, 265, 358, 424, 530, 716, 895, 1060, 1432, 1790, 2120, 3580, 7160, 9487, 18974, 37948, 47435, 53129, 75896, 94870, 106258, 189740, 212516, 265645, 379480, 425032, 531290, 1062580, 2125160, 2815837, 5631674, 9510091, 11263348, 14079185, 19020182, 22526696, 28158370, 38040364, 47550455, 56316740, 76080728, 95100910, 112633480, 190201820, 380403640, 504034823, 1008069646, 2016139292, 2520174115, 4032278584, 5040348230, 10080696460, 20161392920]

約数ペア:

[(1, 20161392920), (2, 10080696460), (4, 5040348230), (5, 4032278584), (8, 2520174115), (10, 2016139292), (20, 1008069646), (40, 504034823), (53, 380403640), (106, 190201820), (179, 112633480), (212, 95100910), (265, 76080728), (358, 56316740), (424, 47550455), (530, 38040364), (716, 28158370), (895, 22526696), (1060, 19020182), (1432, 14079185), (1790, 11263348), (2120, 9510091), (3580, 5631674), (7160, 2815837), (9487, 2125160), (18974, 1062580), (37948, 531290), (47435, 425032), (53129, 379480), (75896, 265645), (94870, 212516), (106258, 189740)]