49967720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 128

約数和(自身を含む): 133056000

約数和(自身を除く): 83088280

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 43, 44, 55, 76, 86, 88, 95, 110, 139, 152, 172, 190, 209, 215, 220, 278, 344, 380, 418, 430, 440, 473, 556, 695, 760, 817, 836, 860, 946, 1045, 1112, 1390, 1529, 1634, 1672, 1720, 1892, 2090, 2365, 2641, 2780, 3058, 3268, 3784, 4085, 4180, 4730, 5282, 5560, 5977, 6116, 6536, 7645, 8170, 8360, 8987, 9460, 10564, 11954, 12232, 13205, 15290, 16340, 17974, 18920, 21128, 23908, 26410, 29051, 29885, 30580, 32680, 35948, 44935, 47816, 52820, 58102, 59770, 61160, 65747, 71896, 89870, 105640, 113563, 116204, 119540, 131494, 145255, 179740, 227126, 232408, 239080, 262988, 290510, 328735, 359480, 454252, 525976, 567815, 581020, 657470, 908504, 1135630, 1162040, 1249193, 1314940, 2271260, 2498386, 2629880, 4542520, 4996772, 6245965, 9993544, 12491930, 24983860, 49967720]

約数ペア:

[(1, 49967720), (2, 24983860), (4, 12491930), (5, 9993544), (8, 6245965), (10, 4996772), (11, 4542520), (19, 2629880), (20, 2498386), (22, 2271260), (38, 1314940), (40, 1249193), (43, 1162040), (44, 1135630), (55, 908504), (76, 657470), (86, 581020), (88, 567815), (95, 525976), (110, 454252), (139, 359480), (152, 328735), (172, 290510), (190, 262988), (209, 239080), (215, 232408), (220, 227126), (278, 179740), (344, 145255), (380, 131494), (418, 119540), (430, 116204), (440, 113563), (473, 105640), (556, 89870), (695, 71896), (760, 65747), (817, 61160), (836, 59770), (860, 58102), (946, 52820), (1045, 47816), (1112, 44935), (1390, 35948), (1529, 32680), (1634, 30580), (1672, 29885), (1720, 29051), (1892, 26410), (2090, 23908), (2365, 21128), (2641, 18920), (2780, 17974), (3058, 16340), (3268, 15290), (3784, 13205), (4085, 12232), (4180, 11954), (4730, 10564), (5282, 9460), (5560, 8987), (5977, 8360), (6116, 8170), (6536, 7645)]