81111965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{421}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 110840832

約数和(自身を除く): 29728867

約数列:

[1, 5, 11, 31, 55, 113, 155, 341, 421, 565, 1243, 1705, 2105, 3503, 4631, 6215, 13051, 17515, 23155, 38533, 47573, 65255, 143561, 192665, 237865, 523303, 717805, 1474763, 2616515, 7373815, 16222393, 81111965]

約数ペア:

[(1, 81111965), (5, 16222393), (11, 7373815), (31, 2616515), (55, 1474763), (113, 717805), (155, 523303), (341, 237865), (421, 192665), (565, 143561), (1243, 65255), (1705, 47573), (2105, 38533), (3503, 23155), (4631, 17515), (6215, 13051)]