640387776

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{476479}}^1$

素因数の和:476501

約数の個数: 56

約数和(自身を含む): 1936414720

約数和(自身を除く): 1296026944

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 168, 192, 224, 336, 448, 672, 1344, 476479, 952958, 1429437, 1905916, 2858874, 3335353, 3811832, 5717748, 6670706, 7623664, 10006059, 11435496, 13341412, 15247328, 20012118, 22870992, 26682824, 30494656, 40024236, 45741984, 53365648, 80048472, 91483968, 106731296, 160096944, 213462592, 320193888, 640387776]

約数ペア:

[(1, 640387776), (2, 320193888), (3, 213462592), (4, 160096944), (6, 106731296), (7, 91483968), (8, 80048472), (12, 53365648), (14, 45741984), (16, 40024236), (21, 30494656), (24, 26682824), (28, 22870992), (32, 20012118), (42, 15247328), (48, 13341412), (56, 11435496), (64, 10006059), (84, 7623664), (96, 6670706), (112, 5717748), (168, 3811832), (192, 3335353), (224, 2858874), (336, 1905916), (448, 1429437), (672, 952958), (1344, 476479)]