20090179585

素因数分解:

$5^1\times 7^2\times {\mathrm{257}}^1\times {\mathrm{319069}}^1$

素因数の和:319345

約数の個数: 24

約数和(自身を含む): 28153460520

約数和(自身を除く): 8063280935

約数列:

[1, 5, 7, 35, 49, 245, 257, 1285, 1799, 8995, 12593, 62965, 319069, 1595345, 2233483, 11167415, 15634381, 78171905, 82000733, 410003665, 574005131, 2870025655, 4018035917, 20090179585]

約数ペア:

[(1, 20090179585), (5, 4018035917), (7, 2870025655), (35, 574005131), (49, 410003665), (245, 82000733), (257, 78171905), (1285, 15634381), (1799, 11167415), (8995, 2233483), (12593, 1595345), (62965, 319069)]