81775780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{240517}}^1$

素因数の和:240543

約数の個数: 24

約数和(自身を含む): 181831608

約数和(自身を除く): 100055828

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 240517, 481034, 962068, 1202585, 2405170, 4088789, 4810340, 8177578, 16355156, 20443945, 40887890, 81775780]

約数ペア:

[(1, 81775780), (2, 40887890), (4, 20443945), (5, 16355156), (10, 8177578), (17, 4810340), (20, 4088789), (34, 2405170), (68, 1202585), (85, 962068), (170, 481034), (340, 240517)]