71807865

素因数分解:

$3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{421}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 117403776

約数和(自身を除く): 45595911

約数列:

[1, 3, 5, 15, 83, 137, 249, 411, 415, 421, 685, 1245, 1263, 2055, 2105, 6315, 11371, 34113, 34943, 56855, 57677, 104829, 170565, 173031, 174715, 288385, 524145, 865155, 4787191, 14361573, 23935955, 71807865]

約数ペア:

[(1, 71807865), (3, 23935955), (5, 14361573), (15, 4787191), (83, 865155), (137, 524145), (249, 288385), (411, 174715), (415, 173031), (421, 170565), (685, 104829), (1245, 57677), (1263, 56855), (2055, 34943), (2105, 34113), (6315, 11371)]