1639894956

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{821}}^1$

素因数の和:964

約数の個数: 144

約数和(自身を含む): 4617930240

約数和(自身を除く): 2978035284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 49, 79, 84, 86, 98, 129, 147, 158, 172, 196, 237, 258, 294, 301, 316, 474, 516, 553, 588, 602, 821, 903, 948, 1106, 1204, 1642, 1659, 1806, 2107, 2212, 2463, 3284, 3318, 3397, 3612, 3871, 4214, 4926, 5747, 6321, 6636, 6794, 7742, 8428, 9852, 10191, 11494, 11613, 12642, 13588, 15484, 17241, 20382, 22988, 23226, 23779, 25284, 34482, 35303, 40229, 40764, 46452, 47558, 64859, 68964, 70606, 71337, 80458, 95116, 105909, 120687, 129718, 141212, 142674, 160916, 166453, 194577, 211818, 241374, 247121, 259436, 285348, 332906, 389154, 423636, 454013, 482748, 494242, 499359, 665812, 741363, 778308, 908026, 988484, 998718, 1362039, 1482726, 1729847, 1816052, 1997436, 2724078, 2788937, 2965452, 3178091, 3459694, 5189541, 5448156, 5577874, 6356182, 6919388, 8366811, 9534273, 10379082, 11155748, 12712364, 16733622, 19068546, 19522559, 20758164, 33467244, 38137092, 39045118, 58567677, 78090236, 117135354, 136657913, 234270708, 273315826, 409973739, 546631652, 819947478, 1639894956]

約数ペア:

[(1, 1639894956), (2, 819947478), (3, 546631652), (4, 409973739), (6, 273315826), (7, 234270708), (12, 136657913), (14, 117135354), (21, 78090236), (28, 58567677), (42, 39045118), (43, 38137092), (49, 33467244), (79, 20758164), (84, 19522559), (86, 19068546), (98, 16733622), (129, 12712364), (147, 11155748), (158, 10379082), (172, 9534273), (196, 8366811), (237, 6919388), (258, 6356182), (294, 5577874), (301, 5448156), (316, 5189541), (474, 3459694), (516, 3178091), (553, 2965452), (588, 2788937), (602, 2724078), (821, 1997436), (903, 1816052), (948, 1729847), (1106, 1482726), (1204, 1362039), (1642, 998718), (1659, 988484), (1806, 908026), (2107, 778308), (2212, 741363), (2463, 665812), (3284, 499359), (3318, 494242), (3397, 482748), (3612, 454013), (3871, 423636), (4214, 389154), (4926, 332906), (5747, 285348), (6321, 259436), (6636, 247121), (6794, 241374), (7742, 211818), (8428, 194577), (9852, 166453), (10191, 160916), (11494, 142674), (11613, 141212), (12642, 129718), (13588, 120687), (15484, 105909), (17241, 95116), (20382, 80458), (22988, 71337), (23226, 70606), (23779, 68964), (25284, 64859), (34482, 47558), (35303, 46452), (40229, 40764)]