278327240

素因数分解:

$2^3\times 5^1\times {\mathrm{6958181}}^1$

素因数の和:6958192

約数の個数: 16

約数和(自身を含む): 626236380

約数和(自身を除く): 347909140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6958181, 13916362, 27832724, 34790905, 55665448, 69581810, 139163620, 278327240]

約数ペア:

[(1, 278327240), (2, 139163620), (4, 69581810), (5, 55665448), (8, 34790905), (10, 27832724), (20, 13916362), (40, 6958181)]