81199360

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:184

約数の個数: 144

約数和(自身を含む): 217808640

約数和(自身を除く): 136609280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 73, 79, 80, 88, 110, 128, 146, 158, 160, 176, 220, 256, 292, 316, 320, 352, 365, 395, 440, 584, 632, 640, 704, 730, 790, 803, 869, 880, 1168, 1264, 1280, 1408, 1460, 1580, 1606, 1738, 1760, 2336, 2528, 2816, 2920, 3160, 3212, 3476, 3520, 4015, 4345, 4672, 5056, 5767, 5840, 6320, 6424, 6952, 7040, 8030, 8690, 9344, 10112, 11534, 11680, 12640, 12848, 13904, 14080, 16060, 17380, 18688, 20224, 23068, 23360, 25280, 25696, 27808, 28835, 32120, 34760, 46136, 46720, 50560, 51392, 55616, 57670, 63437, 64240, 69520, 92272, 93440, 101120, 102784, 111232, 115340, 126874, 128480, 139040, 184544, 205568, 222464, 230680, 253748, 256960, 278080, 317185, 369088, 461360, 507496, 513920, 556160, 634370, 738176, 922720, 1014992, 1027840, 1112320, 1268740, 1476352, 1845440, 2029984, 2537480, 3690880, 4059968, 5074960, 7381760, 8119936, 10149920, 16239872, 20299840, 40599680, 81199360]

約数ペア:

[(1, 81199360), (2, 40599680), (4, 20299840), (5, 16239872), (8, 10149920), (10, 8119936), (11, 7381760), (16, 5074960), (20, 4059968), (22, 3690880), (32, 2537480), (40, 2029984), (44, 1845440), (55, 1476352), (64, 1268740), (73, 1112320), (79, 1027840), (80, 1014992), (88, 922720), (110, 738176), (128, 634370), (146, 556160), (158, 513920), (160, 507496), (176, 461360), (220, 369088), (256, 317185), (292, 278080), (316, 256960), (320, 253748), (352, 230680), (365, 222464), (395, 205568), (440, 184544), (584, 139040), (632, 128480), (640, 126874), (704, 115340), (730, 111232), (790, 102784), (803, 101120), (869, 93440), (880, 92272), (1168, 69520), (1264, 64240), (1280, 63437), (1408, 57670), (1460, 55616), (1580, 51392), (1606, 50560), (1738, 46720), (1760, 46136), (2336, 34760), (2528, 32120), (2816, 28835), (2920, 27808), (3160, 25696), (3212, 25280), (3476, 23360), (3520, 23068), (4015, 20224), (4345, 18688), (4672, 17380), (5056, 16060), (5767, 14080), (5840, 13904), (6320, 12848), (6424, 12640), (6952, 11680), (7040, 11534), (8030, 10112), (8690, 9344)]