51518960

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:306

約数の個数: 80

約数和(自身を含む): 124679520

約数和(自身を除く): 73160560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 113, 139, 164, 205, 226, 278, 328, 410, 452, 556, 565, 656, 695, 820, 904, 1112, 1130, 1390, 1640, 1808, 2224, 2260, 2780, 3280, 4520, 4633, 5560, 5699, 9040, 9266, 11120, 11398, 15707, 18532, 22796, 23165, 28495, 31414, 37064, 45592, 46330, 56990, 62828, 74128, 78535, 91184, 92660, 113980, 125656, 157070, 185320, 227960, 251312, 314140, 370640, 455920, 628280, 643987, 1256560, 1287974, 2575948, 3219935, 5151896, 6439870, 10303792, 12879740, 25759480, 51518960]

約数ペア:

[(1, 51518960), (2, 25759480), (4, 12879740), (5, 10303792), (8, 6439870), (10, 5151896), (16, 3219935), (20, 2575948), (40, 1287974), (41, 1256560), (80, 643987), (82, 628280), (113, 455920), (139, 370640), (164, 314140), (205, 251312), (226, 227960), (278, 185320), (328, 157070), (410, 125656), (452, 113980), (556, 92660), (565, 91184), (656, 78535), (695, 74128), (820, 62828), (904, 56990), (1112, 46330), (1130, 45592), (1390, 37064), (1640, 31414), (1808, 28495), (2224, 23165), (2260, 22796), (2780, 18532), (3280, 15707), (4520, 11398), (4633, 11120), (5560, 9266), (5699, 9040)]