20430472

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{523}}^1$

素因数の和:805

約数の個数: 32

約数和(自身を含む): 40557600

約数和(自身を除く): 20127128

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 257, 514, 523, 1028, 1046, 2056, 2092, 4184, 4883, 9766, 9937, 19532, 19874, 39064, 39748, 79496, 134411, 268822, 537644, 1075288, 2553809, 5107618, 10215236, 20430472]

約数ペア:

[(1, 20430472), (2, 10215236), (4, 5107618), (8, 2553809), (19, 1075288), (38, 537644), (76, 268822), (152, 134411), (257, 79496), (514, 39748), (523, 39064), (1028, 19874), (1046, 19532), (2056, 9937), (2092, 9766), (4184, 4883)]