890504901

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:312

約数の個数: 128

約数和(自身を含む): 1666560000

約数和(自身を除く): 776055099

約数列:

[1, 3, 9, 11, 13, 19, 27, 33, 39, 57, 61, 99, 117, 143, 171, 183, 199, 209, 247, 297, 351, 429, 513, 549, 597, 627, 671, 741, 793, 1159, 1287, 1647, 1791, 1881, 2013, 2189, 2223, 2379, 2587, 2717, 3477, 3781, 3861, 5373, 5643, 6039, 6567, 6669, 7137, 7761, 8151, 8723, 10431, 11343, 12139, 12749, 15067, 18117, 19701, 21411, 23283, 24453, 26169, 28457, 31293, 34029, 36417, 38247, 41591, 45201, 49153, 59103, 69849, 73359, 78507, 85371, 102087, 109251, 114741, 124773, 133529, 135603, 147459, 157807, 165737, 230641, 235521, 256113, 327753, 344223, 374319, 400587, 406809, 442377, 473421, 497211, 540683, 691923, 768339, 1122957, 1201761, 1327131, 1420263, 1491633, 1622049, 1735877, 2075769, 2537051, 2998333, 3605283, 4260789, 4474899, 4866147, 5207631, 6227307, 7611153, 8994999, 14598441, 15622893, 22833459, 26984997, 32981663, 46868679, 68500377, 80954991, 98944989, 296834967, 890504901]

約数ペア:

[(1, 890504901), (3, 296834967), (9, 98944989), (11, 80954991), (13, 68500377), (19, 46868679), (27, 32981663), (33, 26984997), (39, 22833459), (57, 15622893), (61, 14598441), (99, 8994999), (117, 7611153), (143, 6227307), (171, 5207631), (183, 4866147), (199, 4474899), (209, 4260789), (247, 3605283), (297, 2998333), (351, 2537051), (429, 2075769), (513, 1735877), (549, 1622049), (597, 1491633), (627, 1420263), (671, 1327131), (741, 1201761), (793, 1122957), (1159, 768339), (1287, 691923), (1647, 540683), (1791, 497211), (1881, 473421), (2013, 442377), (2189, 406809), (2223, 400587), (2379, 374319), (2587, 344223), (2717, 327753), (3477, 256113), (3781, 235521), (3861, 230641), (5373, 165737), (5643, 157807), (6039, 147459), (6567, 135603), (6669, 133529), (7137, 124773), (7761, 114741), (8151, 109251), (8723, 102087), (10431, 85371), (11343, 78507), (12139, 73359), (12749, 69849), (15067, 59103), (18117, 49153), (19701, 45201), (21411, 41591), (23283, 38247), (24453, 36417), (26169, 34029), (28457, 31293)]