328655680

素因数分解:

$2^6\times 5^1\times {\mathrm{127}}^1\times {\mathrm{8087}}^1$

素因数の和:8231

約数の個数: 56

約数和(自身を含む): 788871168

約数和(自身を除く): 460215488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 160, 254, 320, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 8087, 8128, 10160, 16174, 20320, 32348, 40435, 40640, 64696, 80870, 129392, 161740, 258784, 323480, 517568, 646960, 1027049, 1293920, 2054098, 2587840, 4108196, 5135245, 8216392, 10270490, 16432784, 20540980, 32865568, 41081960, 65731136, 82163920, 164327840, 328655680]

約数ペア:

[(1, 328655680), (2, 164327840), (4, 82163920), (5, 65731136), (8, 41081960), (10, 32865568), (16, 20540980), (20, 16432784), (32, 10270490), (40, 8216392), (64, 5135245), (80, 4108196), (127, 2587840), (160, 2054098), (254, 1293920), (320, 1027049), (508, 646960), (635, 517568), (1016, 323480), (1270, 258784), (2032, 161740), (2540, 129392), (4064, 80870), (5080, 64696), (8087, 40640), (8128, 40435), (10160, 32348), (16174, 20320)]