278701080

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1291}}^1$

素因数の和:1569

約数の個数: 128

約数和(自身を含む): 960007680

約数和(自身を除く): 681306600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 257, 280, 420, 514, 771, 840, 1028, 1285, 1291, 1542, 1799, 2056, 2570, 2582, 3084, 3598, 3855, 3873, 5140, 5164, 5397, 6168, 6455, 7196, 7710, 7746, 8995, 9037, 10280, 10328, 10794, 12910, 14392, 15420, 15492, 17990, 18074, 19365, 21588, 25820, 26985, 27111, 30840, 30984, 35980, 36148, 38730, 43176, 45185, 51640, 53970, 54222, 71960, 72296, 77460, 90370, 107940, 108444, 135555, 154920, 180740, 215880, 216888, 271110, 331787, 361480, 542220, 663574, 995361, 1084440, 1327148, 1658935, 1990722, 2322509, 2654296, 3317870, 3981444, 4645018, 4976805, 6635740, 6967527, 7962888, 9290036, 9953610, 11612545, 13271480, 13935054, 18580072, 19907220, 23225090, 27870108, 34837635, 39814440, 46450180, 55740216, 69675270, 92900360, 139350540, 278701080]

約数ペア:

[(1, 278701080), (2, 139350540), (3, 92900360), (4, 69675270), (5, 55740216), (6, 46450180), (7, 39814440), (8, 34837635), (10, 27870108), (12, 23225090), (14, 19907220), (15, 18580072), (20, 13935054), (21, 13271480), (24, 11612545), (28, 9953610), (30, 9290036), (35, 7962888), (40, 6967527), (42, 6635740), (56, 4976805), (60, 4645018), (70, 3981444), (84, 3317870), (105, 2654296), (120, 2322509), (140, 1990722), (168, 1658935), (210, 1327148), (257, 1084440), (280, 995361), (420, 663574), (514, 542220), (771, 361480), (840, 331787), (1028, 271110), (1285, 216888), (1291, 215880), (1542, 180740), (1799, 154920), (2056, 135555), (2570, 108444), (2582, 107940), (3084, 90370), (3598, 77460), (3855, 72296), (3873, 71960), (5140, 54222), (5164, 53970), (5397, 51640), (6168, 45185), (6455, 43176), (7196, 38730), (7710, 36148), (7746, 35980), (8995, 30984), (9037, 30840), (10280, 27111), (10328, 26985), (10794, 25820), (12910, 21588), (14392, 19365), (15420, 18074), (15492, 17990)]