78879864

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:493

約数の個数: 128

約数和(自身を含む): 242611200

約数和(自身を除く): 163731336

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, 389, 408, 426, 476, 497, 568, 714, 778, 852, 952, 994, 1167, 1207, 1428, 1491, 1556, 1704, 1988, 2334, 2414, 2723, 2856, 2982, 3112, 3621, 3976, 4668, 4828, 5446, 5964, 6613, 7242, 8169, 8449, 9336, 9656, 10892, 11928, 13226, 14484, 16338, 16898, 19839, 21784, 25347, 26452, 27619, 28968, 32676, 33796, 39678, 46291, 50694, 52904, 55238, 65352, 67592, 79356, 82857, 92582, 101388, 110476, 138873, 158712, 165714, 185164, 193333, 202776, 220952, 277746, 331428, 370328, 386666, 469523, 555492, 579999, 662856, 773332, 939046, 1110984, 1159998, 1408569, 1546664, 1878092, 2319996, 2817138, 3286661, 3756184, 4639992, 5634276, 6573322, 9859983, 11268552, 13146644, 19719966, 26293288, 39439932, 78879864]

約数ペア:

[(1, 78879864), (2, 39439932), (3, 26293288), (4, 19719966), (6, 13146644), (7, 11268552), (8, 9859983), (12, 6573322), (14, 5634276), (17, 4639992), (21, 3756184), (24, 3286661), (28, 2817138), (34, 2319996), (42, 1878092), (51, 1546664), (56, 1408569), (68, 1159998), (71, 1110984), (84, 939046), (102, 773332), (119, 662856), (136, 579999), (142, 555492), (168, 469523), (204, 386666), (213, 370328), (238, 331428), (284, 277746), (357, 220952), (389, 202776), (408, 193333), (426, 185164), (476, 165714), (497, 158712), (568, 138873), (714, 110476), (778, 101388), (852, 92582), (952, 82857), (994, 79356), (1167, 67592), (1207, 65352), (1428, 55238), (1491, 52904), (1556, 50694), (1704, 46291), (1988, 39678), (2334, 33796), (2414, 32676), (2723, 28968), (2856, 27619), (2982, 26452), (3112, 25347), (3621, 21784), (3976, 19839), (4668, 16898), (4828, 16338), (5446, 14484), (5964, 13226), (6613, 11928), (7242, 10892), (8169, 9656), (8449, 9336)]