28681920

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{433}}^1$

素因数の和:479

約数の個数: 168

約数和(自身を含む): 103180896

約数和(自身を除く): 74498976

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 64, 69, 72, 80, 90, 92, 96, 115, 120, 138, 144, 160, 180, 184, 192, 207, 230, 240, 276, 288, 320, 345, 360, 368, 414, 433, 460, 480, 552, 576, 690, 720, 736, 828, 866, 920, 960, 1035, 1104, 1299, 1380, 1440, 1472, 1656, 1732, 1840, 2070, 2165, 2208, 2598, 2760, 2880, 3312, 3464, 3680, 3897, 4140, 4330, 4416, 5196, 5520, 6495, 6624, 6928, 7360, 7794, 8280, 8660, 9959, 10392, 11040, 12990, 13248, 13856, 15588, 16560, 17320, 19485, 19918, 20784, 22080, 25980, 27712, 29877, 31176, 33120, 34640, 38970, 39836, 41568, 49795, 51960, 59754, 62352, 66240, 69280, 77940, 79672, 83136, 89631, 99590, 103920, 119508, 124704, 138560, 149385, 155880, 159344, 179262, 199180, 207840, 239016, 249408, 298770, 311760, 318688, 358524, 398360, 415680, 448155, 478032, 597540, 623520, 637376, 717048, 796720, 896310, 956064, 1195080, 1247040, 1434096, 1593440, 1792620, 1912128, 2390160, 2868192, 3186880, 3585240, 4780320, 5736384, 7170480, 9560640, 14340960, 28681920]

約数ペア:

[(1, 28681920), (2, 14340960), (3, 9560640), (4, 7170480), (5, 5736384), (6, 4780320), (8, 3585240), (9, 3186880), (10, 2868192), (12, 2390160), (15, 1912128), (16, 1792620), (18, 1593440), (20, 1434096), (23, 1247040), (24, 1195080), (30, 956064), (32, 896310), (36, 796720), (40, 717048), (45, 637376), (46, 623520), (48, 597540), (60, 478032), (64, 448155), (69, 415680), (72, 398360), (80, 358524), (90, 318688), (92, 311760), (96, 298770), (115, 249408), (120, 239016), (138, 207840), (144, 199180), (160, 179262), (180, 159344), (184, 155880), (192, 149385), (207, 138560), (230, 124704), (240, 119508), (276, 103920), (288, 99590), (320, 89631), (345, 83136), (360, 79672), (368, 77940), (414, 69280), (433, 66240), (460, 62352), (480, 59754), (552, 51960), (576, 49795), (690, 41568), (720, 39836), (736, 38970), (828, 34640), (866, 33120), (920, 31176), (960, 29877), (1035, 27712), (1104, 25980), (1299, 22080), (1380, 20784), (1440, 19918), (1472, 19485), (1656, 17320), (1732, 16560), (1840, 15588), (2070, 13856), (2165, 13248), (2208, 12990), (2598, 11040), (2760, 10392), (2880, 9959), (3312, 8660), (3464, 8280), (3680, 7794), (3897, 7360), (4140, 6928), (4330, 6624), (4416, 6495), (5196, 5520)]