139740760

素因数分解:

$2^3\times 5^1\times {\mathrm{3493519}}^1$

素因数の和:3493530

約数の個数: 16

約数和(自身を含む): 314416800

約数和(自身を除く): 174676040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3493519, 6987038, 13974076, 17467595, 27948152, 34935190, 69870380, 139740760]

約数ペア:

[(1, 139740760), (2, 69870380), (4, 34935190), (5, 27948152), (8, 17467595), (10, 13974076), (20, 6987038), (40, 3493519)]