20910550

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 40711680

約数和(自身を除く): 19801130

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 89, 127, 178, 185, 254, 370, 445, 635, 890, 925, 1270, 1850, 2225, 3175, 3293, 4450, 4699, 6350, 6586, 9398, 11303, 16465, 22606, 23495, 32930, 46990, 56515, 82325, 113030, 117475, 164650, 234950, 282575, 418211, 565150, 836422, 2091055, 4182110, 10455275, 20910550]

約数ペア:

[(1, 20910550), (2, 10455275), (5, 4182110), (10, 2091055), (25, 836422), (37, 565150), (50, 418211), (74, 282575), (89, 234950), (127, 164650), (178, 117475), (185, 113030), (254, 82325), (370, 56515), (445, 46990), (635, 32930), (890, 23495), (925, 22606), (1270, 16465), (1850, 11303), (2225, 9398), (3175, 6586), (3293, 6350), (4450, 4699)]