401118025

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1055

約数の個数: 72

約数和(自身を含む): 658360640

約数和(自身を除く): 257242615

約数列:

[1, 5, 7, 11, 19, 25, 35, 55, 77, 95, 121, 133, 175, 209, 275, 385, 475, 605, 665, 847, 997, 1045, 1463, 1925, 2299, 3025, 3325, 4235, 4985, 5225, 6979, 7315, 10967, 11495, 16093, 18943, 21175, 24925, 34895, 36575, 54835, 57475, 76769, 80465, 94715, 120637, 132601, 174475, 208373, 274175, 383845, 402325, 473575, 603185, 663005, 844459, 1041865, 1458611, 1919225, 2292103, 3015925, 3315025, 4222295, 5209325, 7293055, 11460515, 16044721, 21111475, 36465275, 57302575, 80223605, 401118025]

約数ペア:

[(1, 401118025), (5, 80223605), (7, 57302575), (11, 36465275), (19, 21111475), (25, 16044721), (35, 11460515), (55, 7293055), (77, 5209325), (95, 4222295), (121, 3315025), (133, 3015925), (175, 2292103), (209, 1919225), (275, 1458611), (385, 1041865), (475, 844459), (605, 663005), (665, 603185), (847, 473575), (997, 402325), (1045, 383845), (1463, 274175), (1925, 208373), (2299, 174475), (3025, 132601), (3325, 120637), (4235, 94715), (4985, 80465), (5225, 76769), (6979, 57475), (7315, 54835), (10967, 36575), (11495, 34895), (16093, 24925), (18943, 21175)]