12958780

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4127}}^1$

素因数の和:4293

約数の個数: 24

約数和(自身を含む): 27393408

約数和(自身を除く): 14434628

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 4127, 8254, 16508, 20635, 41270, 82540, 647939, 1295878, 2591756, 3239695, 6479390, 12958780]

約数ペア:

[(1, 12958780), (2, 6479390), (4, 3239695), (5, 2591756), (10, 1295878), (20, 647939), (157, 82540), (314, 41270), (628, 20635), (785, 16508), (1570, 8254), (3140, 4127)]