22387720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7883}}^1$

素因数の和:7965

約数の個数: 32

約数和(自身を含む): 51088320

約数和(自身を除く): 28700600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 7883, 15766, 31532, 39415, 63064, 78830, 157660, 315320, 559693, 1119386, 2238772, 2798465, 4477544, 5596930, 11193860, 22387720]

約数ペア:

[(1, 22387720), (2, 11193860), (4, 5596930), (5, 4477544), (8, 2798465), (10, 2238772), (20, 1119386), (40, 559693), (71, 315320), (142, 157660), (284, 78830), (355, 63064), (568, 39415), (710, 31532), (1420, 15766), (2840, 7883)]