78295475

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{421}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 100155792

約数和(自身を除く): 21860317

約数列:

[1, 5, 25, 43, 173, 215, 421, 865, 1075, 2105, 4325, 7439, 10525, 18103, 37195, 72833, 90515, 185975, 364165, 452575, 1820825, 3131819, 15659095, 78295475]

約数ペア:

[(1, 78295475), (5, 15659095), (25, 3131819), (43, 1820825), (173, 452575), (215, 364165), (421, 185975), (865, 90515), (1075, 72833), (2105, 37195), (4325, 18103), (7439, 10525)]