343748990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{49891}}^1$

素因数の和:49964

約数の個数: 32

約数和(自身を含む): 678930336

約数和(自身を除く): 335181346

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 3445, 6890, 49891, 99782, 249455, 498910, 648583, 1297166, 2644223, 3242915, 5288446, 6485830, 13221115, 26442230, 34374899, 68749798, 171874495, 343748990]

約数ペア:

[(1, 343748990), (2, 171874495), (5, 68749798), (10, 34374899), (13, 26442230), (26, 13221115), (53, 6485830), (65, 5288446), (106, 3242915), (130, 2644223), (265, 1297166), (530, 648583), (689, 498910), (1378, 249455), (3445, 99782), (6890, 49891)]