81231410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{4561}}^1$

素因数の和:4718

約数の個数: 32

約数和(自身を含む): 158648112

約数和(自身を除く): 77416702

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 137, 274, 685, 1370, 1781, 3562, 4561, 8905, 9122, 17810, 22805, 45610, 59293, 118586, 296465, 592930, 624857, 1249714, 3124285, 6248570, 8123141, 16246282, 40615705, 81231410]

約数ペア:

[(1, 81231410), (2, 40615705), (5, 16246282), (10, 8123141), (13, 6248570), (26, 3124285), (65, 1249714), (130, 624857), (137, 592930), (274, 296465), (685, 118586), (1370, 59293), (1781, 45610), (3562, 22805), (4561, 17810), (8905, 9122)]