20078212

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 47738880

約数和(自身を除く): 27660668

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 47, 73, 76, 77, 94, 133, 146, 154, 188, 209, 266, 292, 308, 329, 418, 511, 517, 532, 658, 803, 836, 893, 1022, 1034, 1316, 1387, 1463, 1606, 1786, 2044, 2068, 2774, 2926, 3212, 3431, 3572, 3619, 5548, 5621, 5852, 6251, 6862, 7238, 9709, 9823, 11242, 12502, 13724, 14476, 15257, 19418, 19646, 22484, 24017, 25004, 30514, 37741, 38836, 39292, 48034, 61028, 65189, 68761, 75482, 96068, 106799, 130378, 137522, 150964, 213598, 260756, 264187, 275044, 427196, 456323, 528374, 717079, 912646, 1056748, 1434158, 1825292, 2868316, 5019553, 10039106, 20078212]

約数ペア:

[(1, 20078212), (2, 10039106), (4, 5019553), (7, 2868316), (11, 1825292), (14, 1434158), (19, 1056748), (22, 912646), (28, 717079), (38, 528374), (44, 456323), (47, 427196), (73, 275044), (76, 264187), (77, 260756), (94, 213598), (133, 150964), (146, 137522), (154, 130378), (188, 106799), (209, 96068), (266, 75482), (292, 68761), (308, 65189), (329, 61028), (418, 48034), (511, 39292), (517, 38836), (532, 37741), (658, 30514), (803, 25004), (836, 24017), (893, 22484), (1022, 19646), (1034, 19418), (1316, 15257), (1387, 14476), (1463, 13724), (1606, 12502), (1786, 11242), (2044, 9823), (2068, 9709), (2774, 7238), (2926, 6862), (3212, 6251), (3431, 5852), (3572, 5621), (3619, 5548)]