155809505

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 203575680

約数和(自身を除く): 47766175

約数列:

[1, 5, 17, 67, 85, 109, 251, 335, 545, 1139, 1255, 1853, 4267, 5695, 7303, 9265, 16817, 21335, 27359, 36515, 84085, 124151, 136795, 285889, 465103, 620755, 1429445, 1833053, 2325515, 9165265, 31161901, 155809505]

約数ペア:

[(1, 155809505), (5, 31161901), (17, 9165265), (67, 2325515), (85, 1833053), (109, 1429445), (251, 620755), (335, 465103), (545, 285889), (1139, 136795), (1255, 124151), (1853, 84085), (4267, 36515), (5695, 27359), (7303, 21335), (9265, 16817)]