28289280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:216

約数の個数: 144

約数和(自身を含む): 92715840

約数和(自身を除く): 64426560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 64, 80, 96, 106, 120, 128, 139, 159, 160, 192, 212, 240, 256, 265, 278, 318, 320, 384, 417, 424, 480, 530, 556, 636, 640, 695, 768, 795, 834, 848, 960, 1060, 1112, 1272, 1280, 1390, 1590, 1668, 1696, 1920, 2085, 2120, 2224, 2544, 2780, 3180, 3336, 3392, 3840, 4170, 4240, 4448, 5088, 5560, 6360, 6672, 6784, 7367, 8340, 8480, 8896, 10176, 11120, 12720, 13344, 13568, 14734, 16680, 16960, 17792, 20352, 22101, 22240, 25440, 26688, 29468, 33360, 33920, 35584, 36835, 40704, 44202, 44480, 50880, 53376, 58936, 66720, 67840, 73670, 88404, 88960, 101760, 106752, 110505, 117872, 133440, 147340, 176808, 177920, 203520, 221010, 235744, 266880, 294680, 353616, 442020, 471488, 533760, 589360, 707232, 884040, 942976, 1178720, 1414464, 1768080, 1885952, 2357440, 2828928, 3536160, 4714880, 5657856, 7072320, 9429760, 14144640, 28289280]

約数ペア:

[(1, 28289280), (2, 14144640), (3, 9429760), (4, 7072320), (5, 5657856), (6, 4714880), (8, 3536160), (10, 2828928), (12, 2357440), (15, 1885952), (16, 1768080), (20, 1414464), (24, 1178720), (30, 942976), (32, 884040), (40, 707232), (48, 589360), (53, 533760), (60, 471488), (64, 442020), (80, 353616), (96, 294680), (106, 266880), (120, 235744), (128, 221010), (139, 203520), (159, 177920), (160, 176808), (192, 147340), (212, 133440), (240, 117872), (256, 110505), (265, 106752), (278, 101760), (318, 88960), (320, 88404), (384, 73670), (417, 67840), (424, 66720), (480, 58936), (530, 53376), (556, 50880), (636, 44480), (640, 44202), (695, 40704), (768, 36835), (795, 35584), (834, 33920), (848, 33360), (960, 29468), (1060, 26688), (1112, 25440), (1272, 22240), (1280, 22101), (1390, 20352), (1590, 17792), (1668, 16960), (1696, 16680), (1920, 14734), (2085, 13568), (2120, 13344), (2224, 12720), (2544, 11120), (2780, 10176), (3180, 8896), (3336, 8480), (3392, 8340), (3840, 7367), (4170, 6784), (4240, 6672), (4448, 6360), (5088, 5560)]