57157580

素因数分解:

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

素因数の和:458

約数の個数: 48

約数和(自身を含む): 122744160

約数和(自身を除く): 65586580

約数列:

[1, 2, 4, 5, 10, 20, 89, 163, 178, 197, 326, 356, 394, 445, 652, 788, 815, 890, 985, 1630, 1780, 1970, 3260, 3940, 14507, 17533, 29014, 32111, 35066, 58028, 64222, 70132, 72535, 87665, 128444, 145070, 160555, 175330, 290140, 321110, 350660, 642220, 2857879, 5715758, 11431516, 14289395, 28578790, 57157580]

約数ペア:

[(1, 57157580), (2, 28578790), (4, 14289395), (5, 11431516), (10, 5715758), (20, 2857879), (89, 642220), (163, 350660), (178, 321110), (197, 290140), (326, 175330), (356, 160555), (394, 145070), (445, 128444), (652, 87665), (788, 72535), (815, 70132), (890, 64222), (985, 58028), (1630, 35066), (1780, 32111), (1970, 29014), (3260, 17533), (3940, 14507)]