20869220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{54919}}^1$

素因数の和:54947

約数の個数: 24

約数和(自身を含む): 46132800

約数和(自身を除く): 25263580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 54919, 109838, 219676, 274595, 549190, 1043461, 1098380, 2086922, 4173844, 5217305, 10434610, 20869220]

約数ペア:

[(1, 20869220), (2, 10434610), (4, 5217305), (5, 4173844), (10, 2086922), (19, 1098380), (20, 1043461), (38, 549190), (76, 274595), (95, 219676), (190, 109838), (380, 54919)]