99997145

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 131725440

約数和(自身を除く): 31728295

約数列:

[1, 5, 17, 43, 85, 109, 215, 251, 545, 731, 1255, 1853, 3655, 4267, 4687, 9265, 10793, 21335, 23435, 27359, 53965, 79679, 136795, 183481, 398395, 465103, 917405, 1176437, 2325515, 5882185, 19999429, 99997145]

約数ペア:

[(1, 99997145), (5, 19999429), (17, 5882185), (43, 2325515), (85, 1176437), (109, 917405), (215, 465103), (251, 398395), (545, 183481), (731, 136795), (1255, 79679), (1853, 53965), (3655, 27359), (4267, 23435), (4687, 21335), (9265, 10793)]