12616400

素因数分解:

$2^4\times 5^2\times {\mathrm{31541}}^1$

素因数の和:31559

約数の個数: 30

約数和(自身を含む): 30311862

約数和(自身を除く): 17695462

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31541, 63082, 126164, 157705, 252328, 315410, 504656, 630820, 788525, 1261640, 1577050, 2523280, 3154100, 6308200, 12616400]

約数ペア:

[(1, 12616400), (2, 6308200), (4, 3154100), (5, 2523280), (8, 1577050), (10, 1261640), (16, 788525), (20, 630820), (25, 504656), (40, 315410), (50, 252328), (80, 157705), (100, 126164), (200, 63082), (400, 31541)]