20123093775

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{64327}}^1$

素因数の和:64480

約数の個数: 48

約数和(自身を含む): 34395409664

約数和(自身を除く): 14272315889

約数列:

[1, 3, 5, 15, 25, 43, 75, 97, 129, 215, 291, 485, 645, 1075, 1455, 2425, 3225, 4171, 7275, 12513, 20855, 62565, 64327, 104275, 192981, 312825, 321635, 964905, 1608175, 2766061, 4824525, 6239719, 8298183, 13830305, 18719157, 31198595, 41490915, 69151525, 93595785, 155992975, 207454575, 268307917, 467978925, 804923751, 1341539585, 4024618755, 6707697925, 20123093775]

約数ペア:

[(1, 20123093775), (3, 6707697925), (5, 4024618755), (15, 1341539585), (25, 804923751), (43, 467978925), (75, 268307917), (97, 207454575), (129, 155992975), (215, 93595785), (291, 69151525), (485, 41490915), (645, 31198595), (1075, 18719157), (1455, 13830305), (2425, 8298183), (3225, 6239719), (4171, 4824525), (7275, 2766061), (12513, 1608175), (20855, 964905), (62565, 321635), (64327, 312825), (104275, 192981)]