20743780

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6961}}^1$

素因数の和:7119

約数の個数: 24

約数和(自身を含む): 43860600

約数和(自身を除く): 23116820

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6961, 13922, 27844, 34805, 69610, 139220, 1037189, 2074378, 4148756, 5185945, 10371890, 20743780]

約数ペア:

[(1, 20743780), (2, 10371890), (4, 5185945), (5, 4148756), (10, 2074378), (20, 1037189), (149, 139220), (298, 69610), (596, 34805), (745, 27844), (1490, 13922), (2980, 6961)]