16780148

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 38342304

約数和(自身を除く): 21562156

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 49, 77, 86, 98, 154, 172, 181, 196, 301, 308, 362, 473, 539, 602, 724, 946, 1078, 1204, 1267, 1892, 1991, 2107, 2156, 2534, 3311, 3982, 4214, 5068, 6622, 7783, 7964, 8428, 8869, 13244, 13937, 15566, 17738, 23177, 27874, 31132, 35476, 46354, 54481, 55748, 85613, 92708, 97559, 108962, 171226, 195118, 217924, 342452, 381367, 390236, 599291, 762734, 1198582, 1525468, 2397164, 4195037, 8390074, 16780148]

約数ペア:

[(1, 16780148), (2, 8390074), (4, 4195037), (7, 2397164), (11, 1525468), (14, 1198582), (22, 762734), (28, 599291), (43, 390236), (44, 381367), (49, 342452), (77, 217924), (86, 195118), (98, 171226), (154, 108962), (172, 97559), (181, 92708), (196, 85613), (301, 55748), (308, 54481), (362, 46354), (473, 35476), (539, 31132), (602, 27874), (724, 23177), (946, 17738), (1078, 15566), (1204, 13937), (1267, 13244), (1892, 8869), (1991, 8428), (2107, 7964), (2156, 7783), (2534, 6622), (3311, 5068), (3982, 4214)]