139020280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{21587}}^1$

素因数の和:21628

約数の個数: 64

約数和(自身を含む): 373040640

約数和(自身を除く): 234020360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 21587, 43174, 86348, 107935, 151109, 172696, 215870, 302218, 431740, 496501, 604436, 755545, 863480, 993002, 1208872, 1511090, 1986004, 2482505, 3022180, 3475507, 3972008, 4965010, 6044360, 6951014, 9930020, 13902028, 17377535, 19860040, 27804056, 34755070, 69510140, 139020280]

約数ペア:

[(1, 139020280), (2, 69510140), (4, 34755070), (5, 27804056), (7, 19860040), (8, 17377535), (10, 13902028), (14, 9930020), (20, 6951014), (23, 6044360), (28, 4965010), (35, 3972008), (40, 3475507), (46, 3022180), (56, 2482505), (70, 1986004), (92, 1511090), (115, 1208872), (140, 993002), (161, 863480), (184, 755545), (230, 604436), (280, 496501), (322, 431740), (460, 302218), (644, 215870), (805, 172696), (920, 151109), (1288, 107935), (1610, 86348), (3220, 43174), (6440, 21587)]