257117680

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{44027}}^1$

素因数の和:44113

約数の個数: 40

約数和(自身を含む): 606001392

約数和(自身を除く): 348883712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 5840, 44027, 88054, 176108, 220135, 352216, 440270, 704432, 880540, 1761080, 3213971, 3522160, 6427942, 12855884, 16069855, 25711768, 32139710, 51423536, 64279420, 128558840, 257117680]

約数ペア:

[(1, 257117680), (2, 128558840), (4, 64279420), (5, 51423536), (8, 32139710), (10, 25711768), (16, 16069855), (20, 12855884), (40, 6427942), (73, 3522160), (80, 3213971), (146, 1761080), (292, 880540), (365, 704432), (584, 440270), (730, 352216), (1168, 220135), (1460, 176108), (2920, 88054), (5840, 44027)]