201097900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1997}}^1$

素因数の和:2083

約数の個数: 72

約数和(自身を含む): 468251280

約数和(自身を除く): 267153380

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 53, 76, 95, 100, 106, 190, 212, 265, 380, 475, 530, 950, 1007, 1060, 1325, 1900, 1997, 2014, 2650, 3994, 4028, 5035, 5300, 7988, 9985, 10070, 19970, 20140, 25175, 37943, 39940, 49925, 50350, 75886, 99850, 100700, 105841, 151772, 189715, 199700, 211682, 379430, 423364, 529205, 758860, 948575, 1058410, 1897150, 2010979, 2116820, 2646025, 3794300, 4021958, 5292050, 8043916, 10054895, 10584100, 20109790, 40219580, 50274475, 100548950, 201097900]

約数ペア:

[(1, 201097900), (2, 100548950), (4, 50274475), (5, 40219580), (10, 20109790), (19, 10584100), (20, 10054895), (25, 8043916), (38, 5292050), (50, 4021958), (53, 3794300), (76, 2646025), (95, 2116820), (100, 2010979), (106, 1897150), (190, 1058410), (212, 948575), (265, 758860), (380, 529205), (475, 423364), (530, 379430), (950, 211682), (1007, 199700), (1060, 189715), (1325, 151772), (1900, 105841), (1997, 100700), (2014, 99850), (2650, 75886), (3994, 50350), (4028, 49925), (5035, 39940), (5300, 37943), (7988, 25175), (9985, 20140), (10070, 19970)]