16686520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{463}}^1$

素因数の和:544

約数の個数: 64

約数和(自身を含む): 40590720

約数和(自身を除く): 23904200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 53, 68, 85, 106, 136, 170, 212, 265, 340, 424, 463, 530, 680, 901, 926, 1060, 1802, 1852, 2120, 2315, 3604, 3704, 4505, 4630, 7208, 7871, 9010, 9260, 15742, 18020, 18520, 24539, 31484, 36040, 39355, 49078, 62968, 78710, 98156, 122695, 157420, 196312, 245390, 314840, 417163, 490780, 834326, 981560, 1668652, 2085815, 3337304, 4171630, 8343260, 16686520]

約数ペア:

[(1, 16686520), (2, 8343260), (4, 4171630), (5, 3337304), (8, 2085815), (10, 1668652), (17, 981560), (20, 834326), (34, 490780), (40, 417163), (53, 314840), (68, 245390), (85, 196312), (106, 157420), (136, 122695), (170, 98156), (212, 78710), (265, 62968), (340, 49078), (424, 39355), (463, 36040), (530, 31484), (680, 24539), (901, 18520), (926, 18020), (1060, 15742), (1802, 9260), (1852, 9010), (2120, 7871), (2315, 7208), (3604, 4630), (3704, 4505)]