28913760

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:147

約数の個数: 240

約数和(自身を含む): 107575776

約数和(自身を除く): 78662016

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 32, 36, 40, 45, 46, 48, 54, 60, 69, 72, 80, 81, 90, 92, 96, 97, 108, 115, 120, 135, 138, 144, 160, 162, 180, 184, 194, 207, 216, 230, 240, 270, 276, 288, 291, 324, 345, 360, 368, 388, 405, 414, 432, 460, 480, 485, 540, 552, 582, 621, 648, 690, 720, 736, 776, 810, 828, 864, 873, 920, 970, 1035, 1080, 1104, 1164, 1242, 1296, 1380, 1440, 1455, 1552, 1620, 1656, 1746, 1840, 1863, 1940, 2070, 2160, 2208, 2231, 2328, 2484, 2592, 2619, 2760, 2910, 3104, 3105, 3240, 3312, 3492, 3680, 3726, 3880, 4140, 4320, 4365, 4462, 4656, 4968, 5238, 5520, 5820, 6210, 6480, 6624, 6693, 6984, 7452, 7760, 7857, 8280, 8730, 8924, 9312, 9315, 9936, 10476, 11040, 11155, 11640, 12420, 12960, 13095, 13386, 13968, 14904, 15520, 15714, 16560, 17460, 17848, 18630, 19872, 20079, 20952, 22310, 23280, 24840, 26190, 26772, 27936, 29808, 31428, 33120, 33465, 34920, 35696, 37260, 39285, 40158, 41904, 44620, 46560, 49680, 52380, 53544, 59616, 60237, 62856, 66930, 69840, 71392, 74520, 78570, 80316, 83808, 89240, 99360, 100395, 104760, 107088, 120474, 125712, 133860, 139680, 149040, 157140, 160632, 178480, 180711, 200790, 209520, 214176, 240948, 251424, 267720, 298080, 301185, 314280, 321264, 356960, 361422, 401580, 419040, 481896, 535440, 602370, 628560, 642528, 722844, 803160, 903555, 963792, 1070880, 1204740, 1257120, 1445688, 1606320, 1807110, 1927584, 2409480, 2891376, 3212640, 3614220, 4818960, 5782752, 7228440, 9637920, 14456880, 28913760]

約数ペア:

[(1, 28913760), (2, 14456880), (3, 9637920), (4, 7228440), (5, 5782752), (6, 4818960), (8, 3614220), (9, 3212640), (10, 2891376), (12, 2409480), (15, 1927584), (16, 1807110), (18, 1606320), (20, 1445688), (23, 1257120), (24, 1204740), (27, 1070880), (30, 963792), (32, 903555), (36, 803160), (40, 722844), (45, 642528), (46, 628560), (48, 602370), (54, 535440), (60, 481896), (69, 419040), (72, 401580), (80, 361422), (81, 356960), (90, 321264), (92, 314280), (96, 301185), (97, 298080), (108, 267720), (115, 251424), (120, 240948), (135, 214176), (138, 209520), (144, 200790), (160, 180711), (162, 178480), (180, 160632), (184, 157140), (194, 149040), (207, 139680), (216, 133860), (230, 125712), (240, 120474), (270, 107088), (276, 104760), (288, 100395), (291, 99360), (324, 89240), (345, 83808), (360, 80316), (368, 78570), (388, 74520), (405, 71392), (414, 69840), (432, 66930), (460, 62856), (480, 60237), (485, 59616), (540, 53544), (552, 52380), (582, 49680), (621, 46560), (648, 44620), (690, 41904), (720, 40158), (736, 39285), (776, 37260), (810, 35696), (828, 34920), (864, 33465), (873, 33120), (920, 31428), (970, 29808), (1035, 27936), (1080, 26772), (1104, 26190), (1164, 24840), (1242, 23280), (1296, 22310), (1380, 20952), (1440, 20079), (1455, 19872), (1552, 18630), (1620, 17848), (1656, 17460), (1746, 16560), (1840, 15714), (1863, 15520), (1940, 14904), (2070, 13968), (2160, 13386), (2208, 13095), (2231, 12960), (2328, 12420), (2484, 11640), (2592, 11155), (2619, 11040), (2760, 10476), (2910, 9936), (3104, 9315), (3105, 9312), (3240, 8924), (3312, 8730), (3492, 8280), (3680, 7857), (3726, 7760), (3880, 7452), (4140, 6984), (4320, 6693), (4365, 6624), (4462, 6480), (4656, 6210), (4968, 5820), (5238, 5520)]