20121282500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{731683}}^1$

素因数の和:731718

約数の個数: 60

約数和(自身を含む): 48001397136

約数和(自身を除く): 27880114636

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 625, 1100, 1250, 1375, 2500, 2750, 5500, 6875, 13750, 27500, 731683, 1463366, 2926732, 3658415, 7316830, 8048513, 14633660, 16097026, 18292075, 32194052, 36584150, 40242565, 73168300, 80485130, 91460375, 160970260, 182920750, 201212825, 365841500, 402425650, 457301875, 804851300, 914603750, 1006064125, 1829207500, 2012128250, 4024256500, 5030320625, 10060641250, 20121282500]

約数ペア:

[(1, 20121282500), (2, 10060641250), (4, 5030320625), (5, 4024256500), (10, 2012128250), (11, 1829207500), (20, 1006064125), (22, 914603750), (25, 804851300), (44, 457301875), (50, 402425650), (55, 365841500), (100, 201212825), (110, 182920750), (125, 160970260), (220, 91460375), (250, 80485130), (275, 73168300), (500, 40242565), (550, 36584150), (625, 32194052), (1100, 18292075), (1250, 16097026), (1375, 14633660), (2500, 8048513), (2750, 7316830), (5500, 3658415), (6875, 2926732), (13750, 1463366), (27500, 731683)]