81901580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1733}}^1$

素因数の和:1898

約数の個数: 48

約数和(自身を含む): 183526560

約数和(自身を除く): 101624980

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 139, 170, 278, 340, 556, 695, 1390, 1733, 2363, 2780, 3466, 4726, 6932, 8665, 9452, 11815, 17330, 23630, 29461, 34660, 47260, 58922, 117844, 147305, 240887, 294610, 481774, 589220, 963548, 1204435, 2408870, 4095079, 4817740, 8190158, 16380316, 20475395, 40950790, 81901580]

約数ペア:

[(1, 81901580), (2, 40950790), (4, 20475395), (5, 16380316), (10, 8190158), (17, 4817740), (20, 4095079), (34, 2408870), (68, 1204435), (85, 963548), (139, 589220), (170, 481774), (278, 294610), (340, 240887), (556, 147305), (695, 117844), (1390, 58922), (1733, 47260), (2363, 34660), (2780, 29461), (3466, 23630), (4726, 17330), (6932, 11815), (8665, 9452)]