81529385

素因数分解:

$5^1\times 7^3\times {\mathrm{137}}^1\times {\mathrm{347}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 115257600

約数和(自身を除く): 33728215

約数列:

[1, 5, 7, 35, 49, 137, 245, 343, 347, 685, 959, 1715, 1735, 2429, 4795, 6713, 12145, 17003, 33565, 46991, 47539, 85015, 119021, 234955, 237695, 332773, 595105, 1663865, 2329411, 11647055, 16305877, 81529385]

約数ペア:

[(1, 81529385), (5, 16305877), (7, 11647055), (35, 2329411), (49, 1663865), (137, 595105), (245, 332773), (343, 237695), (347, 234955), (685, 119021), (959, 85015), (1715, 47539), (1735, 46991), (2429, 33565), (4795, 17003), (6713, 12145)]