8628380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 18923520

約数和(自身を除く): 10295140

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 127, 158, 172, 215, 254, 316, 395, 430, 508, 635, 790, 860, 1270, 1580, 2540, 3397, 5461, 6794, 10033, 10922, 13588, 16985, 20066, 21844, 27305, 33970, 40132, 50165, 54610, 67940, 100330, 109220, 200660, 431419, 862838, 1725676, 2157095, 4314190, 8628380]

約数ペア:

[(1, 8628380), (2, 4314190), (4, 2157095), (5, 1725676), (10, 862838), (20, 431419), (43, 200660), (79, 109220), (86, 100330), (127, 67940), (158, 54610), (172, 50165), (215, 40132), (254, 33970), (316, 27305), (395, 21844), (430, 20066), (508, 16985), (635, 13588), (790, 10922), (860, 10033), (1270, 6794), (1580, 5461), (2540, 3397)]