280239442

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{645713}}^1$

素因数の和:645753

約数の個数: 16

約数和(自身を含む): 495908352

約数和(自身を除く): 215668910

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 645713, 1291426, 4519991, 9039982, 20017103, 40034206, 140119721, 280239442]

約数ペア:

[(1, 280239442), (2, 140119721), (7, 40034206), (14, 20017103), (31, 9039982), (62, 4519991), (217, 1291426), (434, 645713)]