81258392

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{247739}}^1$

素因数の和:247786

約数の個数: 16

約数和(自身を含む): 156076200

約数和(自身を除く): 74817808

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 247739, 495478, 990956, 1981912, 10157299, 20314598, 40629196, 81258392]

約数ペア:

[(1, 81258392), (2, 40629196), (4, 20314598), (8, 10157299), (41, 1981912), (82, 990956), (164, 495478), (328, 247739)]