1256816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:249

約数の個数: 40

約数和(自身を含む): 2742384

約数和(自身を除く): 1485568

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 193, 296, 386, 407, 592, 772, 814, 1544, 1628, 2123, 3088, 3256, 4246, 6512, 7141, 8492, 14282, 16984, 28564, 33968, 57128, 78551, 114256, 157102, 314204, 628408, 1256816]

約数ペア:

[(1, 1256816), (2, 628408), (4, 314204), (8, 157102), (11, 114256), (16, 78551), (22, 57128), (37, 33968), (44, 28564), (74, 16984), (88, 14282), (148, 8492), (176, 7141), (193, 6512), (296, 4246), (386, 3256), (407, 3088), (592, 2123), (772, 1628), (814, 1544)]