1523440

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:289

約数の個数: 40

約数和(自身を含む): 3593520

約数和(自身を除く): 2070080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 139, 274, 278, 548, 556, 685, 695, 1096, 1112, 1370, 1390, 2192, 2224, 2740, 2780, 5480, 5560, 10960, 11120, 19043, 38086, 76172, 95215, 152344, 190430, 304688, 380860, 761720, 1523440]

約数ペア:

[(1, 1523440), (2, 761720), (4, 380860), (5, 304688), (8, 190430), (10, 152344), (16, 95215), (20, 76172), (40, 38086), (80, 19043), (137, 11120), (139, 10960), (274, 5560), (278, 5480), (548, 2780), (556, 2740), (685, 2224), (695, 2192), (1096, 1390), (1112, 1370)]