20767501840

素因数分解:

$2^4\times 5^1\times {\mathrm{503}}^1\times {\mathrm{516091}}^1$

素因数の和:516607

約数の個数: 40

約数和(自身を含む): 48380528448

約数和(自身を除く): 27613026608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 503, 1006, 2012, 2515, 4024, 5030, 8048, 10060, 20120, 40240, 516091, 1032182, 2064364, 2580455, 4128728, 5160910, 8257456, 10321820, 20643640, 41287280, 259593773, 519187546, 1038375092, 1297968865, 2076750184, 2595937730, 4153500368, 5191875460, 10383750920, 20767501840]

約数ペア:

[(1, 20767501840), (2, 10383750920), (4, 5191875460), (5, 4153500368), (8, 2595937730), (10, 2076750184), (16, 1297968865), (20, 1038375092), (40, 519187546), (80, 259593773), (503, 41287280), (1006, 20643640), (2012, 10321820), (2515, 8257456), (4024, 5160910), (5030, 4128728), (8048, 2580455), (10060, 2064364), (20120, 1032182), (40240, 516091)]