31281012

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:307

約数の個数: 144

約数和(自身を含む): 98824320

約数和(自身を除く): 67543308

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 27, 28, 36, 42, 46, 49, 54, 63, 69, 84, 92, 98, 108, 126, 138, 147, 161, 189, 196, 207, 252, 257, 276, 294, 322, 378, 414, 441, 483, 514, 588, 621, 644, 756, 771, 828, 882, 966, 1028, 1127, 1242, 1323, 1449, 1542, 1764, 1799, 1932, 2254, 2313, 2484, 2646, 2898, 3084, 3381, 3598, 4347, 4508, 4626, 5292, 5397, 5796, 5911, 6762, 6939, 7196, 8694, 9252, 10143, 10794, 11822, 12593, 13524, 13878, 16191, 17388, 17733, 20286, 21588, 23644, 25186, 27756, 30429, 32382, 35466, 37779, 40572, 41377, 48573, 50372, 53199, 60858, 64764, 70932, 75558, 82754, 97146, 106398, 113337, 121716, 124131, 151116, 159597, 165508, 194292, 212796, 226674, 248262, 289639, 319194, 340011, 372393, 453348, 496524, 579278, 638388, 680022, 744786, 868917, 1117179, 1158556, 1360044, 1489572, 1737834, 2234358, 2606751, 3475668, 4468716, 5213502, 7820253, 10427004, 15640506, 31281012]

約数ペア:

[(1, 31281012), (2, 15640506), (3, 10427004), (4, 7820253), (6, 5213502), (7, 4468716), (9, 3475668), (12, 2606751), (14, 2234358), (18, 1737834), (21, 1489572), (23, 1360044), (27, 1158556), (28, 1117179), (36, 868917), (42, 744786), (46, 680022), (49, 638388), (54, 579278), (63, 496524), (69, 453348), (84, 372393), (92, 340011), (98, 319194), (108, 289639), (126, 248262), (138, 226674), (147, 212796), (161, 194292), (189, 165508), (196, 159597), (207, 151116), (252, 124131), (257, 121716), (276, 113337), (294, 106398), (322, 97146), (378, 82754), (414, 75558), (441, 70932), (483, 64764), (514, 60858), (588, 53199), (621, 50372), (644, 48573), (756, 41377), (771, 40572), (828, 37779), (882, 35466), (966, 32382), (1028, 30429), (1127, 27756), (1242, 25186), (1323, 23644), (1449, 21588), (1542, 20286), (1764, 17733), (1799, 17388), (1932, 16191), (2254, 13878), (2313, 13524), (2484, 12593), (2646, 11822), (2898, 10794), (3084, 10143), (3381, 9252), (3598, 8694), (4347, 7196), (4508, 6939), (4626, 6762), (5292, 5911), (5397, 5796)]