638289315

素因数分解:

$3^5\times 5^1\times {\mathrm{613}}^1\times {\mathrm{857}}^1$

素因数の和:1490

約数の個数: 48

約数和(自身を含む): 1150557408

約数和(自身を除く): 512268093

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 613, 857, 1215, 1839, 2571, 3065, 4285, 5517, 7713, 9195, 12855, 16551, 23139, 27585, 38565, 49653, 69417, 82755, 115695, 148959, 208251, 248265, 347085, 525341, 744795, 1041255, 1576023, 2626705, 4728069, 7880115, 14184207, 23640345, 42552621, 70921035, 127657863, 212763105, 638289315]

約数ペア:

[(1, 638289315), (3, 212763105), (5, 127657863), (9, 70921035), (15, 42552621), (27, 23640345), (45, 14184207), (81, 7880115), (135, 4728069), (243, 2626705), (405, 1576023), (613, 1041255), (857, 744795), (1215, 525341), (1839, 347085), (2571, 248265), (3065, 208251), (4285, 148959), (5517, 115695), (7713, 82755), (9195, 69417), (12855, 49653), (16551, 38565), (23139, 27585)]