813309740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{11971}}^1$

素因数の和:12102

約数の個数: 48

約数和(自身を含む): 1769940480

約数和(自身を除く): 956630740

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 158, 172, 215, 316, 395, 430, 790, 860, 1580, 3397, 6794, 11971, 13588, 16985, 23942, 33970, 47884, 59855, 67940, 119710, 239420, 514753, 945709, 1029506, 1891418, 2059012, 2573765, 3782836, 4728545, 5147530, 9457090, 10295060, 18914180, 40665487, 81330974, 162661948, 203327435, 406654870, 813309740]

約数ペア:

[(1, 813309740), (2, 406654870), (4, 203327435), (5, 162661948), (10, 81330974), (20, 40665487), (43, 18914180), (79, 10295060), (86, 9457090), (158, 5147530), (172, 4728545), (215, 3782836), (316, 2573765), (395, 2059012), (430, 1891418), (790, 1029506), (860, 945709), (1580, 514753), (3397, 239420), (6794, 119710), (11971, 67940), (13588, 59855), (16985, 47884), (23942, 33970)]