28517280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{491}}^1$

素因数の和:531

約数の個数: 144

約数和(自身を含む): 98939232

約数和(自身を除く): 70421952

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 121, 132, 160, 165, 176, 220, 240, 242, 264, 330, 352, 363, 440, 480, 484, 491, 528, 605, 660, 726, 880, 968, 982, 1056, 1210, 1320, 1452, 1473, 1760, 1815, 1936, 1964, 2420, 2455, 2640, 2904, 2946, 3630, 3872, 3928, 4840, 4910, 5280, 5401, 5808, 5892, 7260, 7365, 7856, 9680, 9820, 10802, 11616, 11784, 14520, 14730, 15712, 16203, 19360, 19640, 21604, 23568, 27005, 29040, 29460, 32406, 39280, 43208, 47136, 54010, 58080, 58920, 59411, 64812, 78560, 81015, 86416, 108020, 117840, 118822, 129624, 162030, 172832, 178233, 216040, 235680, 237644, 259248, 297055, 324060, 356466, 432080, 475288, 518496, 594110, 648120, 712932, 864160, 891165, 950576, 1188220, 1296240, 1425864, 1782330, 1901152, 2376440, 2592480, 2851728, 3564660, 4752880, 5703456, 7129320, 9505760, 14258640, 28517280]

約数ペア:

[(1, 28517280), (2, 14258640), (3, 9505760), (4, 7129320), (5, 5703456), (6, 4752880), (8, 3564660), (10, 2851728), (11, 2592480), (12, 2376440), (15, 1901152), (16, 1782330), (20, 1425864), (22, 1296240), (24, 1188220), (30, 950576), (32, 891165), (33, 864160), (40, 712932), (44, 648120), (48, 594110), (55, 518496), (60, 475288), (66, 432080), (80, 356466), (88, 324060), (96, 297055), (110, 259248), (120, 237644), (121, 235680), (132, 216040), (160, 178233), (165, 172832), (176, 162030), (220, 129624), (240, 118822), (242, 117840), (264, 108020), (330, 86416), (352, 81015), (363, 78560), (440, 64812), (480, 59411), (484, 58920), (491, 58080), (528, 54010), (605, 47136), (660, 43208), (726, 39280), (880, 32406), (968, 29460), (982, 29040), (1056, 27005), (1210, 23568), (1320, 21604), (1452, 19640), (1473, 19360), (1760, 16203), (1815, 15712), (1936, 14730), (1964, 14520), (2420, 11784), (2455, 11616), (2640, 10802), (2904, 9820), (2946, 9680), (3630, 7856), (3872, 7365), (3928, 7260), (4840, 5892), (4910, 5808), (5280, 5401)]