256438980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{379}}^1$

素因数の和:583

約数の個数: 192

約数和(自身を含む): 919296000

約数和(自身を除く): 662857020

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, 84, 90, 105, 108, 126, 135, 140, 179, 180, 189, 210, 252, 270, 315, 358, 378, 379, 420, 537, 540, 630, 716, 756, 758, 895, 945, 1074, 1137, 1253, 1260, 1516, 1611, 1790, 1890, 1895, 2148, 2274, 2506, 2653, 2685, 3222, 3411, 3580, 3759, 3780, 3790, 4548, 4833, 5012, 5306, 5370, 5685, 6265, 6444, 6822, 7518, 7580, 7959, 8055, 9666, 10233, 10612, 10740, 11277, 11370, 12530, 13265, 13644, 15036, 15918, 16110, 17055, 18795, 19332, 20466, 22554, 22740, 23877, 24165, 25060, 26530, 31836, 32220, 33831, 34110, 37590, 39795, 40932, 45108, 47754, 48330, 51165, 53060, 56385, 67662, 67841, 68220, 71631, 75180, 79590, 95508, 96660, 102330, 112770, 119385, 135324, 135682, 143262, 159180, 169155, 203523, 204660, 225540, 238770, 271364, 286524, 338310, 339205, 358155, 407046, 474887, 477540, 610569, 676620, 678410, 716310, 814092, 949774, 1017615, 1221138, 1356820, 1424661, 1432620, 1831707, 1899548, 2035230, 2374435, 2442276, 2849322, 3052845, 3663414, 4070460, 4273983, 4748870, 5698644, 6105690, 7123305, 7326828, 8547966, 9158535, 9497740, 12211380, 12821949, 14246610, 17095932, 18317070, 21369915, 25643898, 28493220, 36634140, 42739830, 51287796, 64109745, 85479660, 128219490, 256438980]

約数ペア:

[(1, 256438980), (2, 128219490), (3, 85479660), (4, 64109745), (5, 51287796), (6, 42739830), (7, 36634140), (9, 28493220), (10, 25643898), (12, 21369915), (14, 18317070), (15, 17095932), (18, 14246610), (20, 12821949), (21, 12211380), (27, 9497740), (28, 9158535), (30, 8547966), (35, 7326828), (36, 7123305), (42, 6105690), (45, 5698644), (54, 4748870), (60, 4273983), (63, 4070460), (70, 3663414), (84, 3052845), (90, 2849322), (105, 2442276), (108, 2374435), (126, 2035230), (135, 1899548), (140, 1831707), (179, 1432620), (180, 1424661), (189, 1356820), (210, 1221138), (252, 1017615), (270, 949774), (315, 814092), (358, 716310), (378, 678410), (379, 676620), (420, 610569), (537, 477540), (540, 474887), (630, 407046), (716, 358155), (756, 339205), (758, 338310), (895, 286524), (945, 271364), (1074, 238770), (1137, 225540), (1253, 204660), (1260, 203523), (1516, 169155), (1611, 159180), (1790, 143262), (1890, 135682), (1895, 135324), (2148, 119385), (2274, 112770), (2506, 102330), (2653, 96660), (2685, 95508), (3222, 79590), (3411, 75180), (3580, 71631), (3759, 68220), (3780, 67841), (3790, 67662), (4548, 56385), (4833, 53060), (5012, 51165), (5306, 48330), (5370, 47754), (5685, 45108), (6265, 40932), (6444, 39795), (6822, 37590), (7518, 34110), (7580, 33831), (7959, 32220), (8055, 31836), (9666, 26530), (10233, 25060), (10612, 24165), (10740, 23877), (11277, 22740), (11370, 22554), (12530, 20466), (13265, 19332), (13644, 18795), (15036, 17055), (15918, 16110)]