26981280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{457}}^1$

素因数の和:519

約数の個数: 144

約数和(自身を含む): 94525704

約数和(自身を除く): 67544424

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 96, 120, 123, 144, 160, 164, 180, 205, 240, 246, 288, 328, 360, 369, 410, 457, 480, 492, 615, 656, 720, 738, 820, 914, 984, 1230, 1312, 1371, 1440, 1476, 1640, 1828, 1845, 1968, 2285, 2460, 2742, 2952, 3280, 3656, 3690, 3936, 4113, 4570, 4920, 5484, 5904, 6560, 6855, 7312, 7380, 8226, 9140, 9840, 10968, 11808, 13710, 14624, 14760, 16452, 18280, 18737, 19680, 20565, 21936, 27420, 29520, 32904, 36560, 37474, 41130, 43872, 54840, 56211, 59040, 65808, 73120, 74948, 82260, 93685, 109680, 112422, 131616, 149896, 164520, 168633, 187370, 219360, 224844, 281055, 299792, 329040, 337266, 374740, 449688, 562110, 599584, 658080, 674532, 749480, 843165, 899376, 1124220, 1349064, 1498960, 1686330, 1798752, 2248440, 2698128, 2997920, 3372660, 4496880, 5396256, 6745320, 8993760, 13490640, 26981280]

約数ペア:

[(1, 26981280), (2, 13490640), (3, 8993760), (4, 6745320), (5, 5396256), (6, 4496880), (8, 3372660), (9, 2997920), (10, 2698128), (12, 2248440), (15, 1798752), (16, 1686330), (18, 1498960), (20, 1349064), (24, 1124220), (30, 899376), (32, 843165), (36, 749480), (40, 674532), (41, 658080), (45, 599584), (48, 562110), (60, 449688), (72, 374740), (80, 337266), (82, 329040), (90, 299792), (96, 281055), (120, 224844), (123, 219360), (144, 187370), (160, 168633), (164, 164520), (180, 149896), (205, 131616), (240, 112422), (246, 109680), (288, 93685), (328, 82260), (360, 74948), (369, 73120), (410, 65808), (457, 59040), (480, 56211), (492, 54840), (615, 43872), (656, 41130), (720, 37474), (738, 36560), (820, 32904), (914, 29520), (984, 27420), (1230, 21936), (1312, 20565), (1371, 19680), (1440, 18737), (1476, 18280), (1640, 16452), (1828, 14760), (1845, 14624), (1968, 13710), (2285, 11808), (2460, 10968), (2742, 9840), (2952, 9140), (3280, 8226), (3656, 7380), (3690, 7312), (3936, 6855), (4113, 6560), (4570, 5904), (4920, 5484)]