640401888

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{952979}}^1$

素因数の和:952999

約数の個数: 48

約数和(自身を含む): 1921207680

約数和(自身を除く): 1280805792

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672, 952979, 1905958, 2858937, 3811916, 5717874, 6670853, 7623832, 11435748, 13341706, 15247664, 20012559, 22871496, 26683412, 30495328, 40025118, 45742992, 53366824, 80050236, 91485984, 106733648, 160100472, 213467296, 320200944, 640401888]

約数ペア:

[(1, 640401888), (2, 320200944), (3, 213467296), (4, 160100472), (6, 106733648), (7, 91485984), (8, 80050236), (12, 53366824), (14, 45742992), (16, 40025118), (21, 30495328), (24, 26683412), (28, 22871496), (32, 20012559), (42, 15247664), (48, 13341706), (56, 11435748), (84, 7623832), (96, 6670853), (112, 5717874), (168, 3811916), (224, 2858937), (336, 1905958), (672, 952979)]