649433988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{821}}^1$

素因数の和:954

約数の個数: 144

約数和(自身を含む): 1948442496

約数和(自身を除く): 1299008508

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 63, 73, 84, 86, 126, 129, 146, 172, 219, 252, 258, 292, 301, 387, 438, 511, 516, 602, 657, 774, 821, 876, 903, 1022, 1204, 1314, 1533, 1548, 1642, 1806, 2044, 2463, 2628, 2709, 3066, 3139, 3284, 3612, 4599, 4926, 5418, 5747, 6132, 6278, 7389, 9198, 9417, 9852, 10836, 11494, 12556, 14778, 17241, 18396, 18834, 21973, 22988, 28251, 29556, 34482, 35303, 37668, 43946, 51723, 56502, 59933, 65919, 68964, 70606, 87892, 103446, 105909, 113004, 119866, 131838, 141212, 179799, 197757, 206892, 211818, 239732, 247121, 263676, 317727, 359598, 395514, 419531, 423636, 494242, 539397, 635454, 719196, 741363, 791028, 839062, 988484, 1078794, 1258593, 1270908, 1482726, 1678124, 2157588, 2224089, 2517186, 2577119, 2965452, 3775779, 4448178, 5034372, 5154238, 7551558, 7731357, 8896356, 10308476, 15103116, 15462714, 18039833, 23194071, 30925428, 36079666, 46388142, 54119499, 72159332, 92776284, 108238998, 162358497, 216477996, 324716994, 649433988]

約数ペア:

[(1, 649433988), (2, 324716994), (3, 216477996), (4, 162358497), (6, 108238998), (7, 92776284), (9, 72159332), (12, 54119499), (14, 46388142), (18, 36079666), (21, 30925428), (28, 23194071), (36, 18039833), (42, 15462714), (43, 15103116), (63, 10308476), (73, 8896356), (84, 7731357), (86, 7551558), (126, 5154238), (129, 5034372), (146, 4448178), (172, 3775779), (219, 2965452), (252, 2577119), (258, 2517186), (292, 2224089), (301, 2157588), (387, 1678124), (438, 1482726), (511, 1270908), (516, 1258593), (602, 1078794), (657, 988484), (774, 839062), (821, 791028), (876, 741363), (903, 719196), (1022, 635454), (1204, 539397), (1314, 494242), (1533, 423636), (1548, 419531), (1642, 395514), (1806, 359598), (2044, 317727), (2463, 263676), (2628, 247121), (2709, 239732), (3066, 211818), (3139, 206892), (3284, 197757), (3612, 179799), (4599, 141212), (4926, 131838), (5418, 119866), (5747, 113004), (6132, 105909), (6278, 103446), (7389, 87892), (9198, 70606), (9417, 68964), (9852, 65919), (10836, 59933), (11494, 56502), (12556, 51723), (14778, 43946), (17241, 37668), (18396, 35303), (18834, 34482), (21973, 29556), (22988, 28251)]