2180894840

素因数分解:

$2^3\times 5^1\times {\mathrm{7211}}^1\times {\mathrm{7561}}^1$

素因数の和:14783

約数の個数: 32

約数和(自身を含む): 4908342960

約数和(自身を除く): 2727448120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7211, 7561, 14422, 15122, 28844, 30244, 36055, 37805, 57688, 60488, 72110, 75610, 144220, 151220, 288440, 302440, 54522371, 109044742, 218089484, 272611855, 436178968, 545223710, 1090447420, 2180894840]

約数ペア:

[(1, 2180894840), (2, 1090447420), (4, 545223710), (5, 436178968), (8, 272611855), (10, 218089484), (20, 109044742), (40, 54522371), (7211, 302440), (7561, 288440), (14422, 151220), (15122, 144220), (28844, 75610), (30244, 72110), (36055, 60488), (37805, 57688)]