28983892

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 63903840

約数和(自身を除く): 34919948

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 43, 49, 76, 86, 98, 133, 172, 181, 196, 266, 301, 362, 532, 602, 724, 817, 931, 1204, 1267, 1634, 1862, 2107, 2534, 3268, 3439, 3724, 4214, 5068, 5719, 6878, 7783, 8428, 8869, 11438, 13756, 15566, 17738, 22876, 24073, 31132, 35476, 40033, 48146, 54481, 80066, 96292, 108962, 147877, 160132, 168511, 217924, 295754, 337022, 381367, 591508, 674044, 762734, 1035139, 1525468, 2070278, 4140556, 7245973, 14491946, 28983892]

約数ペア:

[(1, 28983892), (2, 14491946), (4, 7245973), (7, 4140556), (14, 2070278), (19, 1525468), (28, 1035139), (38, 762734), (43, 674044), (49, 591508), (76, 381367), (86, 337022), (98, 295754), (133, 217924), (172, 168511), (181, 160132), (196, 147877), (266, 108962), (301, 96292), (362, 80066), (532, 54481), (602, 48146), (724, 40033), (817, 35476), (931, 31132), (1204, 24073), (1267, 22876), (1634, 17738), (1862, 15566), (2107, 13756), (2534, 11438), (3268, 8869), (3439, 8428), (3724, 7783), (4214, 6878), (5068, 5719)]