387990

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{479}}^1$

素因数の和:498

約数の個数: 40

約数和(自身を含む): 1045440

約数和(自身を除く): 657450

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 479, 810, 958, 1437, 2395, 2874, 4311, 4790, 7185, 8622, 12933, 14370, 21555, 25866, 38799, 43110, 64665, 77598, 129330, 193995, 387990]

約数ペア:

[(1, 387990), (2, 193995), (3, 129330), (5, 77598), (6, 64665), (9, 43110), (10, 38799), (15, 25866), (18, 21555), (27, 14370), (30, 12933), (45, 8622), (54, 7185), (81, 4790), (90, 4311), (135, 2874), (162, 2395), (270, 1437), (405, 958), (479, 810)]