279993840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{821}}^1$

素因数の和:880

約数の個数: 240

約数和(自身を含む): 1045781280

約数和(自身を除く): 765787440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 35, 40, 42, 48, 49, 56, 58, 60, 70, 80, 84, 87, 98, 105, 112, 116, 120, 140, 145, 147, 168, 174, 196, 203, 210, 232, 240, 245, 280, 290, 294, 336, 348, 392, 406, 420, 435, 464, 490, 560, 580, 588, 609, 696, 735, 784, 812, 821, 840, 870, 980, 1015, 1160, 1176, 1218, 1392, 1421, 1470, 1624, 1642, 1680, 1740, 1960, 2030, 2320, 2352, 2436, 2463, 2842, 2940, 3045, 3248, 3284, 3480, 3920, 4060, 4105, 4263, 4872, 4926, 5684, 5747, 5880, 6090, 6568, 6960, 7105, 8120, 8210, 8526, 9744, 9852, 11368, 11494, 11760, 12180, 12315, 13136, 14210, 16240, 16420, 17052, 17241, 19704, 21315, 22736, 22988, 23809, 24360, 24630, 28420, 28735, 32840, 34104, 34482, 39408, 40229, 42630, 45976, 47618, 48720, 49260, 56840, 57470, 65680, 68208, 68964, 71427, 80458, 85260, 86205, 91952, 95236, 98520, 113680, 114940, 119045, 120687, 137928, 142854, 160916, 166663, 170520, 172410, 190472, 197040, 201145, 229880, 238090, 241374, 275856, 285708, 321832, 333326, 341040, 344820, 357135, 380944, 402290, 459760, 476180, 482748, 499989, 571416, 603435, 643664, 666652, 689640, 714270, 804580, 833315, 952360, 965496, 999978, 1142832, 1166641, 1206870, 1333304, 1379280, 1428540, 1609160, 1666630, 1904720, 1930992, 1999956, 2333282, 2413740, 2499945, 2666608, 2857080, 3218320, 3333260, 3499923, 3999912, 4666564, 4827480, 4999890, 5714160, 5833205, 6666520, 6999846, 7999824, 9333128, 9654960, 9999780, 11666410, 13333040, 13999692, 17499615, 18666256, 19999560, 23332820, 27999384, 34999230, 39999120, 46665640, 55998768, 69998460, 93331280, 139996920, 279993840]

約数ペア:

[(1, 279993840), (2, 139996920), (3, 93331280), (4, 69998460), (5, 55998768), (6, 46665640), (7, 39999120), (8, 34999230), (10, 27999384), (12, 23332820), (14, 19999560), (15, 18666256), (16, 17499615), (20, 13999692), (21, 13333040), (24, 11666410), (28, 9999780), (29, 9654960), (30, 9333128), (35, 7999824), (40, 6999846), (42, 6666520), (48, 5833205), (49, 5714160), (56, 4999890), (58, 4827480), (60, 4666564), (70, 3999912), (80, 3499923), (84, 3333260), (87, 3218320), (98, 2857080), (105, 2666608), (112, 2499945), (116, 2413740), (120, 2333282), (140, 1999956), (145, 1930992), (147, 1904720), (168, 1666630), (174, 1609160), (196, 1428540), (203, 1379280), (210, 1333304), (232, 1206870), (240, 1166641), (245, 1142832), (280, 999978), (290, 965496), (294, 952360), (336, 833315), (348, 804580), (392, 714270), (406, 689640), (420, 666652), (435, 643664), (464, 603435), (490, 571416), (560, 499989), (580, 482748), (588, 476180), (609, 459760), (696, 402290), (735, 380944), (784, 357135), (812, 344820), (821, 341040), (840, 333326), (870, 321832), (980, 285708), (1015, 275856), (1160, 241374), (1176, 238090), (1218, 229880), (1392, 201145), (1421, 197040), (1470, 190472), (1624, 172410), (1642, 170520), (1680, 166663), (1740, 160916), (1960, 142854), (2030, 137928), (2320, 120687), (2352, 119045), (2436, 114940), (2463, 113680), (2842, 98520), (2940, 95236), (3045, 91952), (3248, 86205), (3284, 85260), (3480, 80458), (3920, 71427), (4060, 68964), (4105, 68208), (4263, 65680), (4872, 57470), (4926, 56840), (5684, 49260), (5747, 48720), (5880, 47618), (6090, 45976), (6568, 42630), (6960, 40229), (7105, 39408), (8120, 34482), (8210, 34104), (8526, 32840), (9744, 28735), (9852, 28420), (11368, 24630), (11494, 24360), (11760, 23809), (12180, 22988), (12315, 22736), (13136, 21315), (14210, 19704), (16240, 17241), (16420, 17052)]