2165940

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{191}}^1$

素因数の和:219

約数の個数: 120

約数和(自身を含む): 7805952

約数和(自身を除く): 5640012

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 191, 210, 252, 270, 315, 324, 378, 382, 405, 420, 540, 567, 573, 630, 756, 764, 810, 945, 955, 1134, 1146, 1260, 1337, 1620, 1719, 1890, 1910, 2268, 2292, 2674, 2835, 2865, 3438, 3780, 3820, 4011, 5157, 5348, 5670, 5730, 6685, 6876, 8022, 8595, 10314, 11340, 11460, 12033, 13370, 15471, 16044, 17190, 20055, 20628, 24066, 25785, 26740, 30942, 34380, 36099, 40110, 48132, 51570, 60165, 61884, 72198, 77355, 80220, 103140, 108297, 120330, 144396, 154710, 180495, 216594, 240660, 309420, 360990, 433188, 541485, 721980, 1082970, 2165940]

約数ペア:

[(1, 2165940), (2, 1082970), (3, 721980), (4, 541485), (5, 433188), (6, 360990), (7, 309420), (9, 240660), (10, 216594), (12, 180495), (14, 154710), (15, 144396), (18, 120330), (20, 108297), (21, 103140), (27, 80220), (28, 77355), (30, 72198), (35, 61884), (36, 60165), (42, 51570), (45, 48132), (54, 40110), (60, 36099), (63, 34380), (70, 30942), (81, 26740), (84, 25785), (90, 24066), (105, 20628), (108, 20055), (126, 17190), (135, 16044), (140, 15471), (162, 13370), (180, 12033), (189, 11460), (191, 11340), (210, 10314), (252, 8595), (270, 8022), (315, 6876), (324, 6685), (378, 5730), (382, 5670), (405, 5348), (420, 5157), (540, 4011), (567, 3820), (573, 3780), (630, 3438), (756, 2865), (764, 2835), (810, 2674), (945, 2292), (955, 2268), (1134, 1910), (1146, 1890), (1260, 1719), (1337, 1620)]