16561520

素因数分解:

$2^4\times 5^1\times {\mathrm{241}}^1\times {\mathrm{859}}^1$

素因数の和:1113

約数の個数: 40

約数和(自身を含む): 38710320

約数和(自身を除く): 22148800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241, 482, 859, 964, 1205, 1718, 1928, 2410, 3436, 3856, 4295, 4820, 6872, 8590, 9640, 13744, 17180, 19280, 34360, 68720, 207019, 414038, 828076, 1035095, 1656152, 2070190, 3312304, 4140380, 8280760, 16561520]

約数ペア:

[(1, 16561520), (2, 8280760), (4, 4140380), (5, 3312304), (8, 2070190), (10, 1656152), (16, 1035095), (20, 828076), (40, 414038), (80, 207019), (241, 68720), (482, 34360), (859, 19280), (964, 17180), (1205, 13744), (1718, 9640), (1928, 8590), (2410, 6872), (3436, 4820), (3856, 4295)]