8128505

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 12469248

約数和(自身を除く): 4340743

約数列:

[1, 5, 7, 11, 35, 43, 55, 77, 215, 301, 385, 473, 491, 1505, 2365, 2455, 3311, 3437, 5401, 16555, 17185, 21113, 27005, 37807, 105565, 147791, 189035, 232243, 738955, 1161215, 1625701, 8128505]

約数ペア:

[(1, 8128505), (5, 1625701), (7, 1161215), (11, 738955), (35, 232243), (43, 189035), (55, 147791), (77, 105565), (215, 37807), (301, 27005), (385, 21113), (473, 17185), (491, 16555), (1505, 5401), (2365, 3437), (2455, 3311)]