678776

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:84

約数の個数: 64

約数和(自身を含む): 1658880

約数和(自身を除く): 980104

約数列:

[1, 2, 4, 7, 8, 14, 17, 23, 28, 31, 34, 46, 56, 62, 68, 92, 119, 124, 136, 161, 184, 217, 238, 248, 322, 391, 434, 476, 527, 644, 713, 782, 868, 952, 1054, 1288, 1426, 1564, 1736, 2108, 2737, 2852, 3128, 3689, 4216, 4991, 5474, 5704, 7378, 9982, 10948, 12121, 14756, 19964, 21896, 24242, 29512, 39928, 48484, 84847, 96968, 169694, 339388, 678776]

約数ペア:

[(1, 678776), (2, 339388), (4, 169694), (7, 96968), (8, 84847), (14, 48484), (17, 39928), (23, 29512), (28, 24242), (31, 21896), (34, 19964), (46, 14756), (56, 12121), (62, 10948), (68, 9982), (92, 7378), (119, 5704), (124, 5474), (136, 4991), (161, 4216), (184, 3689), (217, 3128), (238, 2852), (248, 2737), (322, 2108), (391, 1736), (434, 1564), (476, 1426), (527, 1288), (644, 1054), (713, 952), (782, 868)]