1640541160

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1\times {\mathrm{2213}}^1$

素因数の和:2698

約数の個数: 64

約数和(自身を含む): 3787534080

約数和(自身を除く): 2146992920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 431, 860, 862, 1720, 1724, 2155, 2213, 3448, 4310, 4426, 8620, 8852, 11065, 17240, 17704, 18533, 22130, 37066, 44260, 74132, 88520, 92665, 95159, 148264, 185330, 190318, 370660, 380636, 475795, 741320, 761272, 951590, 953803, 1903180, 1907606, 3806360, 3815212, 4769015, 7630424, 9538030, 19076060, 38152120, 41013529, 82027058, 164054116, 205067645, 328108232, 410135290, 820270580, 1640541160]

約数ペア:

[(1, 1640541160), (2, 820270580), (4, 410135290), (5, 328108232), (8, 205067645), (10, 164054116), (20, 82027058), (40, 41013529), (43, 38152120), (86, 19076060), (172, 9538030), (215, 7630424), (344, 4769015), (430, 3815212), (431, 3806360), (860, 1907606), (862, 1903180), (1720, 953803), (1724, 951590), (2155, 761272), (2213, 741320), (3448, 475795), (4310, 380636), (4426, 370660), (8620, 190318), (8852, 185330), (11065, 148264), (17240, 95159), (17704, 92665), (18533, 88520), (22130, 74132), (37066, 44260)]