20161749076

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1\times {\mathrm{26801}}^1$

素因数の和:27280

約数の個数: 48

約数和(自身を含む): 41028930432

約数和(自身を除く): 20867181356

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 401, 469, 802, 938, 1604, 1876, 2807, 5614, 11228, 26801, 26867, 53602, 53734, 107204, 107468, 187607, 188069, 375214, 376138, 750428, 752276, 1795667, 3591334, 7182668, 10747201, 12569669, 21494402, 25139338, 42988804, 50278676, 75230407, 150460814, 300921628, 720062467, 1440124934, 2880249868, 5040437269, 10080874538, 20161749076]

約数ペア:

[(1, 20161749076), (2, 10080874538), (4, 5040437269), (7, 2880249868), (14, 1440124934), (28, 720062467), (67, 300921628), (134, 150460814), (268, 75230407), (401, 50278676), (469, 42988804), (802, 25139338), (938, 21494402), (1604, 12569669), (1876, 10747201), (2807, 7182668), (5614, 3591334), (11228, 1795667), (26801, 752276), (26867, 750428), (53602, 376138), (53734, 375214), (107204, 188069), (107468, 187607)]