261991408

素因数分解:

$2^4\times 7^1\times {\mathrm{1123}}^1\times {\mathrm{2083}}^1$

素因数の和:3221

約数の個数: 40

約数和(自身を含む): 580919168

約数和(自身を除く): 318927760

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1123, 2083, 2246, 4166, 4492, 7861, 8332, 8984, 14581, 15722, 16664, 17968, 29162, 31444, 33328, 58324, 62888, 116648, 125776, 233296, 2339209, 4678418, 9356836, 16374463, 18713672, 32748926, 37427344, 65497852, 130995704, 261991408]

約数ペア:

[(1, 261991408), (2, 130995704), (4, 65497852), (7, 37427344), (8, 32748926), (14, 18713672), (16, 16374463), (28, 9356836), (56, 4678418), (112, 2339209), (1123, 233296), (2083, 125776), (2246, 116648), (4166, 62888), (4492, 58324), (7861, 33328), (8332, 31444), (8984, 29162), (14581, 17968), (15722, 16664)]