128385104

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{195709}}^1$

素因数の和:195758

約数の個数: 20

約数和(自身を含む): 254814420

約数和(自身を除く): 126429316

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 195709, 391418, 782836, 1565672, 3131344, 8024069, 16048138, 32096276, 64192552, 128385104]

約数ペア:

[(1, 128385104), (2, 64192552), (4, 32096276), (8, 16048138), (16, 8024069), (41, 3131344), (82, 1565672), (164, 782836), (328, 391418), (656, 195709)]