217663490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{379}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 449141760

約数和(自身を除く): 231478270

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 227, 230, 253, 379, 454, 506, 758, 1135, 1265, 1895, 2270, 2497, 2530, 3790, 4169, 4994, 5221, 8338, 8717, 10442, 12485, 17434, 20845, 24970, 26105, 41690, 43585, 52210, 57431, 86033, 87170, 95887, 114862, 172066, 191774, 287155, 430165, 479435, 574310, 860330, 946363, 958870, 1892726, 1978759, 3957518, 4731815, 9463630, 9893795, 19787590, 21766349, 43532698, 108831745, 217663490]

約数ペア:

[(1, 217663490), (2, 108831745), (5, 43532698), (10, 21766349), (11, 19787590), (22, 9893795), (23, 9463630), (46, 4731815), (55, 3957518), (110, 1978759), (115, 1892726), (227, 958870), (230, 946363), (253, 860330), (379, 574310), (454, 479435), (506, 430165), (758, 287155), (1135, 191774), (1265, 172066), (1895, 114862), (2270, 95887), (2497, 87170), (2530, 86033), (3790, 57431), (4169, 52210), (4994, 43585), (5221, 41690), (8338, 26105), (8717, 24970), (10442, 20845), (12485, 17434)]