255991218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{320791}}^1$

素因数の和:320822

約数の個数: 32

約数和(自身を含む): 615920640

約数和(自身を除く): 359929422

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798, 320791, 641582, 962373, 1924746, 2245537, 4491074, 6095029, 6736611, 12190058, 13473222, 18285087, 36570174, 42665203, 85330406, 127995609, 255991218]

約数ペア:

[(1, 255991218), (2, 127995609), (3, 85330406), (6, 42665203), (7, 36570174), (14, 18285087), (19, 13473222), (21, 12190058), (38, 6736611), (42, 6095029), (57, 4491074), (114, 2245537), (133, 1924746), (266, 962373), (399, 641582), (798, 320791)]