855540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{97}}^1$

素因数の和:126

約数の個数: 108

約数和(自身を含む): 3049956

約数和(自身を除く): 2194416

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 97, 98, 105, 126, 140, 147, 180, 194, 196, 210, 245, 252, 291, 294, 315, 388, 420, 441, 485, 490, 582, 588, 630, 679, 735, 873, 882, 970, 980, 1164, 1260, 1358, 1455, 1470, 1746, 1764, 1940, 2037, 2205, 2716, 2910, 2940, 3395, 3492, 4074, 4365, 4410, 4753, 5820, 6111, 6790, 8148, 8730, 8820, 9506, 10185, 12222, 13580, 14259, 17460, 19012, 20370, 23765, 24444, 28518, 30555, 40740, 42777, 47530, 57036, 61110, 71295, 85554, 95060, 122220, 142590, 171108, 213885, 285180, 427770, 855540]

約数ペア:

[(1, 855540), (2, 427770), (3, 285180), (4, 213885), (5, 171108), (6, 142590), (7, 122220), (9, 95060), (10, 85554), (12, 71295), (14, 61110), (15, 57036), (18, 47530), (20, 42777), (21, 40740), (28, 30555), (30, 28518), (35, 24444), (36, 23765), (42, 20370), (45, 19012), (49, 17460), (60, 14259), (63, 13580), (70, 12222), (84, 10185), (90, 9506), (97, 8820), (98, 8730), (105, 8148), (126, 6790), (140, 6111), (147, 5820), (180, 4753), (194, 4410), (196, 4365), (210, 4074), (245, 3492), (252, 3395), (291, 2940), (294, 2910), (315, 2716), (388, 2205), (420, 2037), (441, 1940), (485, 1764), (490, 1746), (582, 1470), (588, 1455), (630, 1358), (679, 1260), (735, 1164), (873, 980), (882, 970)]