256947460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{166849}}^1$

素因数の和:166876

約数の個数: 48

約数和(自身を含む): 672739200

約数和(自身を除く): 415791740

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 166849, 333698, 667396, 834245, 1167943, 1668490, 1835339, 2335886, 3336980, 3670678, 4671772, 5839715, 7341356, 9176695, 11679430, 12847373, 18353390, 23358860, 25694746, 36706780, 51389492, 64236865, 128473730, 256947460]

約数ペア:

[(1, 256947460), (2, 128473730), (4, 64236865), (5, 51389492), (7, 36706780), (10, 25694746), (11, 23358860), (14, 18353390), (20, 12847373), (22, 11679430), (28, 9176695), (35, 7341356), (44, 5839715), (55, 4671772), (70, 3670678), (77, 3336980), (110, 2335886), (140, 1835339), (154, 1668490), (220, 1167943), (308, 834245), (385, 667396), (770, 333698), (1540, 166849)]