17881808

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:184

約数の個数: 80

約数和(自身を含む): 41902080

約数和(自身を除く): 24020272

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 47, 56, 79, 86, 94, 112, 158, 172, 188, 301, 316, 329, 344, 376, 553, 602, 632, 658, 688, 752, 1106, 1204, 1264, 1316, 2021, 2212, 2408, 2632, 3397, 3713, 4042, 4424, 4816, 5264, 6794, 7426, 8084, 8848, 13588, 14147, 14852, 16168, 23779, 25991, 27176, 28294, 29704, 32336, 47558, 51982, 54352, 56588, 59408, 95116, 103964, 113176, 159659, 190232, 207928, 226352, 319318, 380464, 415856, 638636, 1117613, 1277272, 2235226, 2554544, 4470452, 8940904, 17881808]

約数ペア:

[(1, 17881808), (2, 8940904), (4, 4470452), (7, 2554544), (8, 2235226), (14, 1277272), (16, 1117613), (28, 638636), (43, 415856), (47, 380464), (56, 319318), (79, 226352), (86, 207928), (94, 190232), (112, 159659), (158, 113176), (172, 103964), (188, 95116), (301, 59408), (316, 56588), (329, 54352), (344, 51982), (376, 47558), (553, 32336), (602, 29704), (632, 28294), (658, 27176), (688, 25991), (752, 23779), (1106, 16168), (1204, 14852), (1264, 14147), (1316, 13588), (2021, 8848), (2212, 8084), (2408, 7426), (2632, 6794), (3397, 5264), (3713, 4816), (4042, 4424)]