20320048

素因数分解:

$2^4\times 7^1\times {\mathrm{397}}^1\times {\mathrm{457}}^1$

素因数の和:869

約数の個数: 40

約数和(自身を含む): 45206432

約数和(自身を除く): 24886384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 397, 457, 794, 914, 1588, 1828, 2779, 3176, 3199, 3656, 5558, 6352, 6398, 7312, 11116, 12796, 22232, 25592, 44464, 51184, 181429, 362858, 725716, 1270003, 1451432, 2540006, 2902864, 5080012, 10160024, 20320048]

約数ペア:

[(1, 20320048), (2, 10160024), (4, 5080012), (7, 2902864), (8, 2540006), (14, 1451432), (16, 1270003), (28, 725716), (56, 362858), (112, 181429), (397, 51184), (457, 44464), (794, 25592), (914, 22232), (1588, 12796), (1828, 11116), (2779, 7312), (3176, 6398), (3199, 6352), (3656, 5558)]