27640845

素因数分解:

$3^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:647

約数の個数: 40

約数和(自身を含む): 50006880

約数和(自身を除く): 22366035

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 139, 405, 417, 491, 695, 1251, 1473, 2085, 2455, 3753, 4419, 6255, 7365, 11259, 13257, 18765, 22095, 39771, 56295, 66285, 68249, 198855, 204747, 341245, 614241, 1023735, 1842723, 3071205, 5528169, 9213615, 27640845]

約数ペア:

[(1, 27640845), (3, 9213615), (5, 5528169), (9, 3071205), (15, 1842723), (27, 1023735), (45, 614241), (81, 341245), (135, 204747), (139, 198855), (405, 68249), (417, 66285), (491, 56295), (695, 39771), (1251, 22095), (1473, 18765), (2085, 13257), (2455, 11259), (3753, 7365), (4419, 6255)]