405978720

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:494

約数の個数: 288

約数和(自身を含む): 1527525216

約数和(自身を除く): 1121546496

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 41, 42, 48, 49, 56, 60, 70, 80, 82, 84, 96, 98, 105, 112, 120, 123, 140, 147, 160, 164, 168, 196, 205, 210, 224, 240, 245, 246, 280, 287, 294, 328, 336, 392, 410, 420, 421, 480, 490, 492, 560, 574, 588, 615, 656, 672, 735, 784, 820, 840, 842, 861, 980, 984, 1120, 1148, 1176, 1230, 1263, 1312, 1435, 1470, 1568, 1640, 1680, 1684, 1722, 1960, 1968, 2009, 2105, 2296, 2352, 2460, 2526, 2870, 2940, 2947, 3280, 3360, 3368, 3444, 3920, 3936, 4018, 4210, 4305, 4592, 4704, 4920, 5052, 5740, 5880, 5894, 6027, 6315, 6560, 6736, 6888, 7840, 8036, 8420, 8610, 8841, 9184, 9840, 10045, 10104, 11480, 11760, 11788, 12054, 12630, 13472, 13776, 14735, 16072, 16840, 17220, 17261, 17682, 19680, 20090, 20208, 20629, 22960, 23520, 23576, 24108, 25260, 27552, 29470, 30135, 32144, 33680, 34440, 34522, 35364, 40180, 40416, 41258, 44205, 45920, 47152, 48216, 50520, 51783, 58940, 60270, 61887, 64288, 67360, 68880, 69044, 70728, 80360, 82516, 86305, 88410, 94304, 96432, 101040, 103145, 103566, 117880, 120540, 120827, 123774, 137760, 138088, 141456, 160720, 165032, 172610, 176820, 192864, 202080, 206290, 207132, 235760, 241080, 241654, 247548, 258915, 276176, 282912, 309435, 321440, 330064, 345220, 353640, 362481, 412580, 414264, 471520, 482160, 483308, 495096, 517830, 552352, 604135, 618870, 660128, 690440, 707280, 724962, 825160, 828528, 845789, 964320, 966616, 990192, 1035660, 1208270, 1237740, 1380880, 1414560, 1449924, 1650320, 1657056, 1691578, 1812405, 1933232, 1980384, 2071320, 2416540, 2475480, 2537367, 2761760, 2899848, 3300640, 3383156, 3624810, 3866464, 4142640, 4228945, 4833080, 4950960, 5074734, 5799696, 6766312, 7249620, 8285280, 8457890, 9666160, 9901920, 10149468, 11599392, 12686835, 13532624, 14499240, 16915780, 19332320, 20298936, 25373670, 27065248, 28998480, 33831560, 40597872, 50747340, 57996960, 67663120, 81195744, 101494680, 135326240, 202989360, 405978720]

約数ペア:

[(1, 405978720), (2, 202989360), (3, 135326240), (4, 101494680), (5, 81195744), (6, 67663120), (7, 57996960), (8, 50747340), (10, 40597872), (12, 33831560), (14, 28998480), (15, 27065248), (16, 25373670), (20, 20298936), (21, 19332320), (24, 16915780), (28, 14499240), (30, 13532624), (32, 12686835), (35, 11599392), (40, 10149468), (41, 9901920), (42, 9666160), (48, 8457890), (49, 8285280), (56, 7249620), (60, 6766312), (70, 5799696), (80, 5074734), (82, 4950960), (84, 4833080), (96, 4228945), (98, 4142640), (105, 3866464), (112, 3624810), (120, 3383156), (123, 3300640), (140, 2899848), (147, 2761760), (160, 2537367), (164, 2475480), (168, 2416540), (196, 2071320), (205, 1980384), (210, 1933232), (224, 1812405), (240, 1691578), (245, 1657056), (246, 1650320), (280, 1449924), (287, 1414560), (294, 1380880), (328, 1237740), (336, 1208270), (392, 1035660), (410, 990192), (420, 966616), (421, 964320), (480, 845789), (490, 828528), (492, 825160), (560, 724962), (574, 707280), (588, 690440), (615, 660128), (656, 618870), (672, 604135), (735, 552352), (784, 517830), (820, 495096), (840, 483308), (842, 482160), (861, 471520), (980, 414264), (984, 412580), (1120, 362481), (1148, 353640), (1176, 345220), (1230, 330064), (1263, 321440), (1312, 309435), (1435, 282912), (1470, 276176), (1568, 258915), (1640, 247548), (1680, 241654), (1684, 241080), (1722, 235760), (1960, 207132), (1968, 206290), (2009, 202080), (2105, 192864), (2296, 176820), (2352, 172610), (2460, 165032), (2526, 160720), (2870, 141456), (2940, 138088), (2947, 137760), (3280, 123774), (3360, 120827), (3368, 120540), (3444, 117880), (3920, 103566), (3936, 103145), (4018, 101040), (4210, 96432), (4305, 94304), (4592, 88410), (4704, 86305), (4920, 82516), (5052, 80360), (5740, 70728), (5880, 69044), (5894, 68880), (6027, 67360), (6315, 64288), (6560, 61887), (6736, 60270), (6888, 58940), (7840, 51783), (8036, 50520), (8420, 48216), (8610, 47152), (8841, 45920), (9184, 44205), (9840, 41258), (10045, 40416), (10104, 40180), (11480, 35364), (11760, 34522), (11788, 34440), (12054, 33680), (12630, 32144), (13472, 30135), (13776, 29470), (14735, 27552), (16072, 25260), (16840, 24108), (17220, 23576), (17261, 23520), (17682, 22960), (19680, 20629), (20090, 20208)]