28715040

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1$

素因数の和:81

約数の個数: 288

約数和(自身を含む): 111404160

約数和(自身を除く): 82689120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 23, 24, 27, 30, 32, 34, 36, 40, 45, 46, 48, 51, 54, 60, 68, 69, 72, 80, 85, 90, 92, 96, 102, 108, 115, 120, 135, 136, 138, 144, 153, 160, 170, 180, 184, 204, 207, 216, 230, 240, 255, 270, 272, 276, 288, 289, 306, 340, 345, 360, 368, 391, 408, 414, 432, 459, 460, 480, 510, 540, 544, 552, 578, 612, 621, 680, 690, 720, 736, 765, 782, 816, 828, 864, 867, 918, 920, 1020, 1035, 1080, 1104, 1156, 1173, 1224, 1242, 1360, 1380, 1440, 1445, 1530, 1564, 1632, 1656, 1734, 1836, 1840, 1955, 2040, 2070, 2160, 2208, 2295, 2312, 2346, 2448, 2484, 2601, 2720, 2760, 2890, 3060, 3105, 3128, 3312, 3468, 3519, 3672, 3680, 3910, 4080, 4140, 4320, 4335, 4590, 4624, 4692, 4896, 4968, 5202, 5520, 5780, 5865, 6120, 6210, 6256, 6624, 6647, 6936, 7038, 7344, 7803, 7820, 8160, 8280, 8670, 9180, 9248, 9384, 9936, 10404, 10557, 11040, 11560, 11730, 12240, 12420, 12512, 13005, 13294, 13872, 14076, 14688, 15606, 15640, 16560, 17340, 17595, 18360, 18768, 19872, 19941, 20808, 21114, 23120, 23460, 24480, 24840, 26010, 26588, 27744, 28152, 31212, 31280, 33120, 33235, 34680, 35190, 36720, 37536, 39015, 39882, 41616, 42228, 46240, 46920, 49680, 52020, 52785, 53176, 56304, 59823, 62424, 62560, 66470, 69360, 70380, 73440, 78030, 79764, 83232, 84456, 93840, 99360, 99705, 104040, 105570, 106352, 112608, 119646, 124848, 132940, 138720, 140760, 156060, 159528, 168912, 179469, 187680, 199410, 208080, 211140, 212704, 239292, 249696, 265880, 281520, 299115, 312120, 319056, 337824, 358938, 398820, 416160, 422280, 478584, 531760, 563040, 598230, 624240, 638112, 717876, 797640, 844560, 897345, 957168, 1063520, 1196460, 1248480, 1435752, 1595280, 1689120, 1794690, 1914336, 2392920, 2871504, 3190560, 3589380, 4785840, 5743008, 7178760, 9571680, 14357520, 28715040]

約数ペア:

[(1, 28715040), (2, 14357520), (3, 9571680), (4, 7178760), (5, 5743008), (6, 4785840), (8, 3589380), (9, 3190560), (10, 2871504), (12, 2392920), (15, 1914336), (16, 1794690), (17, 1689120), (18, 1595280), (20, 1435752), (23, 1248480), (24, 1196460), (27, 1063520), (30, 957168), (32, 897345), (34, 844560), (36, 797640), (40, 717876), (45, 638112), (46, 624240), (48, 598230), (51, 563040), (54, 531760), (60, 478584), (68, 422280), (69, 416160), (72, 398820), (80, 358938), (85, 337824), (90, 319056), (92, 312120), (96, 299115), (102, 281520), (108, 265880), (115, 249696), (120, 239292), (135, 212704), (136, 211140), (138, 208080), (144, 199410), (153, 187680), (160, 179469), (170, 168912), (180, 159528), (184, 156060), (204, 140760), (207, 138720), (216, 132940), (230, 124848), (240, 119646), (255, 112608), (270, 106352), (272, 105570), (276, 104040), (288, 99705), (289, 99360), (306, 93840), (340, 84456), (345, 83232), (360, 79764), (368, 78030), (391, 73440), (408, 70380), (414, 69360), (432, 66470), (459, 62560), (460, 62424), (480, 59823), (510, 56304), (540, 53176), (544, 52785), (552, 52020), (578, 49680), (612, 46920), (621, 46240), (680, 42228), (690, 41616), (720, 39882), (736, 39015), (765, 37536), (782, 36720), (816, 35190), (828, 34680), (864, 33235), (867, 33120), (918, 31280), (920, 31212), (1020, 28152), (1035, 27744), (1080, 26588), (1104, 26010), (1156, 24840), (1173, 24480), (1224, 23460), (1242, 23120), (1360, 21114), (1380, 20808), (1440, 19941), (1445, 19872), (1530, 18768), (1564, 18360), (1632, 17595), (1656, 17340), (1734, 16560), (1836, 15640), (1840, 15606), (1955, 14688), (2040, 14076), (2070, 13872), (2160, 13294), (2208, 13005), (2295, 12512), (2312, 12420), (2346, 12240), (2448, 11730), (2484, 11560), (2601, 11040), (2720, 10557), (2760, 10404), (2890, 9936), (3060, 9384), (3105, 9248), (3128, 9180), (3312, 8670), (3468, 8280), (3519, 8160), (3672, 7820), (3680, 7803), (3910, 7344), (4080, 7038), (4140, 6936), (4320, 6647), (4335, 6624), (4590, 6256), (4624, 6210), (4692, 6120), (4896, 5865), (4968, 5780), (5202, 5520)]