2011207720

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{301079}}^1$

素因数の和:301257

約数の個数: 32

約数和(自身を含む): 4552329600

約数和(自身を除く): 2541121880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 3340, 6680, 301079, 602158, 1204316, 1505395, 2408632, 3010790, 6021580, 12043160, 50280193, 100560386, 201120772, 251400965, 402241544, 502801930, 1005603860, 2011207720]

約数ペア:

[(1, 2011207720), (2, 1005603860), (4, 502801930), (5, 402241544), (8, 251400965), (10, 201120772), (20, 100560386), (40, 50280193), (167, 12043160), (334, 6021580), (668, 3010790), (835, 2408632), (1336, 1505395), (1670, 1204316), (3340, 602158), (6680, 301079)]