1917855

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 3706560

約数和(自身を除く): 1788705

約数列:

[1, 3, 5, 9, 15, 17, 23, 45, 51, 69, 85, 109, 115, 153, 207, 255, 327, 345, 391, 545, 765, 981, 1035, 1173, 1635, 1853, 1955, 2507, 3519, 4905, 5559, 5865, 7521, 9265, 12535, 16677, 17595, 22563, 27795, 37605, 42619, 83385, 112815, 127857, 213095, 383571, 639285, 1917855]

約数ペア:

[(1, 1917855), (3, 639285), (5, 383571), (9, 213095), (15, 127857), (17, 112815), (23, 83385), (45, 42619), (51, 37605), (69, 27795), (85, 22563), (109, 17595), (115, 16677), (153, 12535), (207, 9265), (255, 7521), (327, 5865), (345, 5559), (391, 4905), (545, 3519), (765, 2507), (981, 1955), (1035, 1853), (1173, 1635)]