128689456

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67589}}^1$

素因数の和:67621

約数の個数: 40

約数和(自身を含む): 301721760

約数和(自身を除く): 173032304

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 67589, 135178, 270356, 473123, 540712, 946246, 1081424, 1149013, 1892492, 2298026, 3784984, 4596052, 7569968, 8043091, 9192104, 16086182, 18384208, 32172364, 64344728, 128689456]

約数ペア:

[(1, 128689456), (2, 64344728), (4, 32172364), (7, 18384208), (8, 16086182), (14, 9192104), (16, 8043091), (17, 7569968), (28, 4596052), (34, 3784984), (56, 2298026), (68, 1892492), (112, 1149013), (119, 1081424), (136, 946246), (238, 540712), (272, 473123), (476, 270356), (952, 135178), (1904, 67589)]