128379356

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{86509}}^1$

素因数の和:86573

約数の個数: 24

約数和(自身を含む): 261606240

約数和(自身を除く): 133226884

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 86509, 173018, 346036, 605563, 1211126, 2422252, 4584977, 9169954, 18339908, 32094839, 64189678, 128379356]

約数ペア:

[(1, 128379356), (2, 64189678), (4, 32094839), (7, 18339908), (14, 9169954), (28, 4584977), (53, 2422252), (106, 1211126), (212, 605563), (371, 346036), (742, 173018), (1484, 86509)]