199111108

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:585

約数の個数: 72

約数和(自身を含む): 431047680

約数和(自身を除く): 231936572

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 127, 133, 196, 254, 266, 421, 508, 532, 842, 889, 931, 1684, 1778, 1862, 2413, 2947, 3556, 3724, 4826, 5894, 6223, 7999, 9652, 11788, 12446, 15998, 16891, 20629, 24892, 31996, 33782, 41258, 53467, 55993, 67564, 82516, 106934, 111986, 118237, 213868, 223972, 236474, 374269, 391951, 472948, 748538, 783902, 1015873, 1497076, 1567804, 2031746, 2619883, 4063492, 5239766, 7111111, 10479532, 14222222, 28444444, 49777777, 99555554, 199111108]

約数ペア:

[(1, 199111108), (2, 99555554), (4, 49777777), (7, 28444444), (14, 14222222), (19, 10479532), (28, 7111111), (38, 5239766), (49, 4063492), (76, 2619883), (98, 2031746), (127, 1567804), (133, 1497076), (196, 1015873), (254, 783902), (266, 748538), (421, 472948), (508, 391951), (532, 374269), (842, 236474), (889, 223972), (931, 213868), (1684, 118237), (1778, 111986), (1862, 106934), (2413, 82516), (2947, 67564), (3556, 55993), (3724, 53467), (4826, 41258), (5894, 33782), (6223, 31996), (7999, 24892), (9652, 20629), (11788, 16891), (12446, 15998)]