638848

素因数分解:

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

素因数の和:75

約数の個数: 64

約数和(自身を含む): 1566720

約数和(自身を除く): 927872

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 31, 32, 46, 56, 62, 64, 92, 112, 124, 128, 161, 184, 217, 224, 248, 322, 368, 434, 448, 496, 644, 713, 736, 868, 896, 992, 1288, 1426, 1472, 1736, 1984, 2576, 2852, 2944, 3472, 3968, 4991, 5152, 5704, 6944, 9982, 10304, 11408, 13888, 19964, 20608, 22816, 27776, 39928, 45632, 79856, 91264, 159712, 319424, 638848]

約数ペア:

[(1, 638848), (2, 319424), (4, 159712), (7, 91264), (8, 79856), (14, 45632), (16, 39928), (23, 27776), (28, 22816), (31, 20608), (32, 19964), (46, 13888), (56, 11408), (62, 10304), (64, 9982), (92, 6944), (112, 5704), (124, 5152), (128, 4991), (161, 3968), (184, 3472), (217, 2944), (224, 2852), (248, 2576), (322, 1984), (368, 1736), (434, 1472), (448, 1426), (496, 1288), (644, 992), (713, 896), (736, 868)]