28707288

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1088

約数の個数: 64

約数和(自身を含む): 77137920

約数和(自身を除く): 48430632

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 71, 102, 136, 142, 204, 213, 284, 408, 426, 568, 852, 991, 1207, 1704, 1982, 2414, 2973, 3621, 3964, 4828, 5946, 7242, 7928, 9656, 11892, 14484, 16847, 23784, 28968, 33694, 50541, 67388, 70361, 101082, 134776, 140722, 202164, 211083, 281444, 404328, 422166, 562888, 844332, 1196137, 1688664, 2392274, 3588411, 4784548, 7176822, 9569096, 14353644, 28707288]

約数ペア:

[(1, 28707288), (2, 14353644), (3, 9569096), (4, 7176822), (6, 4784548), (8, 3588411), (12, 2392274), (17, 1688664), (24, 1196137), (34, 844332), (51, 562888), (68, 422166), (71, 404328), (102, 281444), (136, 211083), (142, 202164), (204, 140722), (213, 134776), (284, 101082), (408, 70361), (426, 67388), (568, 50541), (852, 33694), (991, 28968), (1207, 23784), (1704, 16847), (1982, 14484), (2414, 11892), (2973, 9656), (3621, 7928), (3964, 7242), (4828, 5946)]