20120512490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4992683}}^1$

素因数の和:4992734

約数の個数: 32

約数和(自身を含む): 40261003776

約数和(自身を除く): 20140491286

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 4992683, 9985366, 24963415, 49926830, 64904879, 129809758, 154773173, 309546346, 324524395, 649048790, 773865865, 1547731730, 2012051249, 4024102498, 10060256245, 20120512490]

約数ペア:

[(1, 20120512490), (2, 10060256245), (5, 4024102498), (10, 2012051249), (13, 1547731730), (26, 773865865), (31, 649048790), (62, 324524395), (65, 309546346), (130, 154773173), (155, 129809758), (310, 64904879), (403, 49926830), (806, 24963415), (2015, 9985366), (4030, 4992683)]