257915262

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{503}}^1$

素因数の和:993

約数の個数: 64

約数和(自身を含む): 598316544

約数和(自身を除く): 340401282

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 66, 102, 187, 374, 457, 503, 561, 914, 1006, 1122, 1371, 1509, 2742, 3018, 5027, 5533, 7769, 8551, 10054, 11066, 15081, 15538, 16599, 17102, 23307, 25653, 30162, 33198, 46614, 51306, 85459, 94061, 170918, 188122, 229871, 256377, 282183, 459742, 512754, 564366, 689613, 1379226, 2528581, 3907807, 5057162, 7585743, 7815614, 11723421, 15171486, 23446842, 42985877, 85971754, 128957631, 257915262]

約数ペア:

[(1, 257915262), (2, 128957631), (3, 85971754), (6, 42985877), (11, 23446842), (17, 15171486), (22, 11723421), (33, 7815614), (34, 7585743), (51, 5057162), (66, 3907807), (102, 2528581), (187, 1379226), (374, 689613), (457, 564366), (503, 512754), (561, 459742), (914, 282183), (1006, 256377), (1122, 229871), (1371, 188122), (1509, 170918), (2742, 94061), (3018, 85459), (5027, 51306), (5533, 46614), (7769, 33198), (8551, 30162), (10054, 25653), (11066, 23307), (15081, 17102), (15538, 16599)]