261109904

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{20323}}^1$

素因数の和:20415

約数の個数: 40

約数和(自身を含む): 559479072

約数和(自身を除く): 298369168

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 73, 88, 146, 176, 292, 584, 803, 1168, 1606, 3212, 6424, 12848, 20323, 40646, 81292, 162584, 223553, 325168, 447106, 894212, 1483579, 1788424, 2967158, 3576848, 5934316, 11868632, 16319369, 23737264, 32638738, 65277476, 130554952, 261109904]

約数ペア:

[(1, 261109904), (2, 130554952), (4, 65277476), (8, 32638738), (11, 23737264), (16, 16319369), (22, 11868632), (44, 5934316), (73, 3576848), (88, 2967158), (146, 1788424), (176, 1483579), (292, 894212), (584, 447106), (803, 325168), (1168, 223553), (1606, 162584), (3212, 81292), (6424, 40646), (12848, 20323)]