18351540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2371}}^1$

素因数の和:2429

約数の個数: 72

約数和(自身を含む): 56984928

約数和(自身を除く): 38633388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2371, 2580, 3870, 4742, 7113, 7740, 9484, 11855, 14226, 21339, 23710, 28452, 35565, 42678, 47420, 71130, 85356, 101953, 106695, 142260, 203906, 213390, 305859, 407812, 426780, 509765, 611718, 917577, 1019530, 1223436, 1529295, 1835154, 2039060, 3058590, 3670308, 4587885, 6117180, 9175770, 18351540]

約数ペア:

[(1, 18351540), (2, 9175770), (3, 6117180), (4, 4587885), (5, 3670308), (6, 3058590), (9, 2039060), (10, 1835154), (12, 1529295), (15, 1223436), (18, 1019530), (20, 917577), (30, 611718), (36, 509765), (43, 426780), (45, 407812), (60, 305859), (86, 213390), (90, 203906), (129, 142260), (172, 106695), (180, 101953), (215, 85356), (258, 71130), (387, 47420), (430, 42678), (516, 35565), (645, 28452), (774, 23710), (860, 21339), (1290, 14226), (1548, 11855), (1935, 9484), (2371, 7740), (2580, 7113), (3870, 4742)]