28578790

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{197}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 52604640

約数和(自身を除く): 24025850

約数列:

[1, 2, 5, 10, 89, 163, 178, 197, 326, 394, 445, 815, 890, 985, 1630, 1970, 14507, 17533, 29014, 32111, 35066, 64222, 72535, 87665, 145070, 160555, 175330, 321110, 2857879, 5715758, 14289395, 28578790]

約数ペア:

[(1, 28578790), (2, 14289395), (5, 5715758), (10, 2857879), (89, 321110), (163, 175330), (178, 160555), (197, 145070), (326, 87665), (394, 72535), (445, 64222), (815, 35066), (890, 32111), (985, 29014), (1630, 17533), (1970, 14507)]