1388490064

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{6675433}}^1$

素因数の和:6675454

約数の個数: 20

約数和(自身を含む): 2897138356

約数和(自身を除く): 1508648292

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 6675433, 13350866, 26701732, 53403464, 86780629, 106806928, 173561258, 347122516, 694245032, 1388490064]

約数ペア:

[(1, 1388490064), (2, 694245032), (4, 347122516), (8, 173561258), (13, 106806928), (16, 86780629), (26, 53403464), (52, 26701732), (104, 13350866), (208, 6675433)]