129840112

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{197927}}^1$

素因数の和:197976

約数の個数: 20

約数和(自身を含む): 257702256

約数和(自身を除く): 127862144

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 197927, 395854, 791708, 1583416, 3166832, 8115007, 16230014, 32460028, 64920056, 129840112]

約数ペア:

[(1, 129840112), (2, 64920056), (4, 32460028), (8, 16230014), (16, 8115007), (41, 3166832), (82, 1583416), (164, 791708), (328, 395854), (656, 197927)]