138249904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{664663}}^1$

素因数の和:664684

約数の個数: 20

約数和(自身を含む): 288464176

約数和(自身を除く): 150214272

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 664663, 1329326, 2658652, 5317304, 8640619, 10634608, 17281238, 34562476, 69124952, 138249904]

約数ペア:

[(1, 138249904), (2, 69124952), (4, 34562476), (8, 17281238), (13, 10634608), (16, 8640619), (26, 5317304), (52, 2658652), (104, 1329326), (208, 664663)]