278657820

素因数分解:

$2^2\times 3^5\times 5^1\times 7^1\times {\mathrm{8191}}^1$

素因数の和:8222

約数の個数: 144

約数和(自身を含む): 1001914368

約数和(自身を除く): 723256548

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, 210, 243, 252, 270, 315, 324, 378, 405, 420, 486, 540, 567, 630, 756, 810, 945, 972, 1134, 1215, 1260, 1620, 1701, 1890, 2268, 2430, 2835, 3402, 3780, 4860, 5670, 6804, 8191, 8505, 11340, 16382, 17010, 24573, 32764, 34020, 40955, 49146, 57337, 73719, 81910, 98292, 114674, 122865, 147438, 163820, 172011, 221157, 229348, 245730, 286685, 294876, 344022, 368595, 442314, 491460, 516033, 573370, 663471, 688044, 737190, 860055, 884628, 1032066, 1105785, 1146740, 1326942, 1474380, 1548099, 1720110, 1990413, 2064132, 2211570, 2580165, 2653884, 3096198, 3317355, 3440220, 3980826, 4423140, 4644297, 5160330, 6192396, 6634710, 7740495, 7961652, 9288594, 9952065, 10320660, 13269420, 13932891, 15480990, 18577188, 19904130, 23221485, 27865782, 30961980, 39808260, 46442970, 55731564, 69664455, 92885940, 139328910, 278657820]

約数ペア:

[(1, 278657820), (2, 139328910), (3, 92885940), (4, 69664455), (5, 55731564), (6, 46442970), (7, 39808260), (9, 30961980), (10, 27865782), (12, 23221485), (14, 19904130), (15, 18577188), (18, 15480990), (20, 13932891), (21, 13269420), (27, 10320660), (28, 9952065), (30, 9288594), (35, 7961652), (36, 7740495), (42, 6634710), (45, 6192396), (54, 5160330), (60, 4644297), (63, 4423140), (70, 3980826), (81, 3440220), (84, 3317355), (90, 3096198), (105, 2653884), (108, 2580165), (126, 2211570), (135, 2064132), (140, 1990413), (162, 1720110), (180, 1548099), (189, 1474380), (210, 1326942), (243, 1146740), (252, 1105785), (270, 1032066), (315, 884628), (324, 860055), (378, 737190), (405, 688044), (420, 663471), (486, 573370), (540, 516033), (567, 491460), (630, 442314), (756, 368595), (810, 344022), (945, 294876), (972, 286685), (1134, 245730), (1215, 229348), (1260, 221157), (1620, 172011), (1701, 163820), (1890, 147438), (2268, 122865), (2430, 114674), (2835, 98292), (3402, 81910), (3780, 73719), (4860, 57337), (5670, 49146), (6804, 40955), (8191, 34020), (8505, 32764), (11340, 24573), (16382, 17010)]