20120282780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2496313}}^1$

素因数の和:2496366

約数の個数: 48

約数和(自身を含む): 46970644224

約数和(自身を除く): 26850361444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 2496313, 4992626, 9985252, 12481565, 24963130, 32452069, 49926260, 64904138, 77385703, 129808276, 154771406, 162260345, 309542812, 324520690, 386928515, 649041380, 773857030, 1006014139, 1547714060, 2012028278, 4024056556, 5030070695, 10060141390, 20120282780]

約数ペア:

[(1, 20120282780), (2, 10060141390), (4, 5030070695), (5, 4024056556), (10, 2012028278), (13, 1547714060), (20, 1006014139), (26, 773857030), (31, 649041380), (52, 386928515), (62, 324520690), (65, 309542812), (124, 162260345), (130, 154771406), (155, 129808276), (260, 77385703), (310, 64904138), (403, 49926260), (620, 32452069), (806, 24963130), (1612, 12481565), (2015, 9985252), (4030, 4992626), (8060, 2496313)]