20297872

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2971}}^1$

素因数の和:3047

約数の個数: 40

約数和(自身を含む): 45697472

約数和(自身を除く): 25399600

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 244, 427, 488, 854, 976, 1708, 2971, 3416, 5942, 6832, 11884, 20797, 23768, 41594, 47536, 83188, 166376, 181231, 332752, 362462, 724924, 1268617, 1449848, 2537234, 2899696, 5074468, 10148936, 20297872]

約数ペア:

[(1, 20297872), (2, 10148936), (4, 5074468), (7, 2899696), (8, 2537234), (14, 1449848), (16, 1268617), (28, 724924), (56, 362462), (61, 332752), (112, 181231), (122, 166376), (244, 83188), (427, 47536), (488, 41594), (854, 23768), (976, 20797), (1708, 11884), (2971, 6832), (3416, 5942)]