85097840

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{4139}}^1$

素因数の和:4409

約数の個数: 40

約数和(自身を含む): 198670320

約数和(自身を除く): 113572480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 4139, 5140, 8278, 10280, 16556, 20560, 20695, 33112, 41390, 66224, 82780, 165560, 331120, 1063723, 2127446, 4254892, 5318615, 8509784, 10637230, 17019568, 21274460, 42548920, 85097840]

約数ペア:

[(1, 85097840), (2, 42548920), (4, 21274460), (5, 17019568), (8, 10637230), (10, 8509784), (16, 5318615), (20, 4254892), (40, 2127446), (80, 1063723), (257, 331120), (514, 165560), (1028, 82780), (1285, 66224), (2056, 41390), (2570, 33112), (4112, 20695), (4139, 20560), (5140, 16556), (8278, 10280)]