20413984940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53721013}}^1$

素因数の和:53721041

約数の個数: 24

約数和(自身を含む): 45125651760

約数和(自身を除く): 24711666820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53721013, 107442026, 214884052, 268605065, 537210130, 1020699247, 1074420260, 2041398494, 4082796988, 5103496235, 10206992470, 20413984940]

約数ペア:

[(1, 20413984940), (2, 10206992470), (4, 5103496235), (5, 4082796988), (10, 2041398494), (19, 1074420260), (20, 1020699247), (38, 537210130), (76, 268605065), (95, 214884052), (190, 107442026), (380, 53721013)]