161888284

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{112111}}^1$

素因数の和:112153

約数の個数: 18

約数和(自身を含む): 299002704

約数和(自身を除く): 137114420

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 112111, 224222, 448444, 2130109, 4260218, 8520436, 40472071, 80944142, 161888284]

約数ペア:

[(1, 161888284), (2, 80944142), (4, 40472071), (19, 8520436), (38, 4260218), (76, 2130109), (361, 448444), (722, 224222), (1444, 112111)]