81313176

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:505

約数の個数: 128

約数和(自身を含む): 250076160

約数和(自身を除く): 168762984

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 71, 84, 102, 119, 136, 142, 168, 204, 213, 238, 284, 357, 401, 408, 426, 476, 497, 568, 714, 802, 852, 952, 994, 1203, 1207, 1428, 1491, 1604, 1704, 1988, 2406, 2414, 2807, 2856, 2982, 3208, 3621, 3976, 4812, 4828, 5614, 5964, 6817, 7242, 8421, 8449, 9624, 9656, 11228, 11928, 13634, 14484, 16842, 16898, 20451, 22456, 25347, 27268, 28471, 28968, 33684, 33796, 40902, 47719, 50694, 54536, 56942, 67368, 67592, 81804, 85413, 95438, 101388, 113884, 143157, 163608, 170826, 190876, 199297, 202776, 227768, 286314, 341652, 381752, 398594, 484007, 572628, 597891, 683304, 797188, 968014, 1145256, 1195782, 1452021, 1594376, 1936028, 2391564, 2904042, 3388049, 3872056, 4783128, 5808084, 6776098, 10164147, 11616168, 13552196, 20328294, 27104392, 40656588, 81313176]

約数ペア:

[(1, 81313176), (2, 40656588), (3, 27104392), (4, 20328294), (6, 13552196), (7, 11616168), (8, 10164147), (12, 6776098), (14, 5808084), (17, 4783128), (21, 3872056), (24, 3388049), (28, 2904042), (34, 2391564), (42, 1936028), (51, 1594376), (56, 1452021), (68, 1195782), (71, 1145256), (84, 968014), (102, 797188), (119, 683304), (136, 597891), (142, 572628), (168, 484007), (204, 398594), (213, 381752), (238, 341652), (284, 286314), (357, 227768), (401, 202776), (408, 199297), (426, 190876), (476, 170826), (497, 163608), (568, 143157), (714, 113884), (802, 101388), (852, 95438), (952, 85413), (994, 81804), (1203, 67592), (1207, 67368), (1428, 56942), (1491, 54536), (1604, 50694), (1704, 47719), (1988, 40902), (2406, 33796), (2414, 33684), (2807, 28968), (2856, 28471), (2982, 27268), (3208, 25347), (3621, 22456), (3976, 20451), (4812, 16898), (4828, 16842), (5614, 14484), (5964, 13634), (6817, 11928), (7242, 11228), (8421, 9656), (8449, 9624)]