217545385

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:178

約数の個数: 64

約数和(自身を含む): 303367680

約数和(自身を除く): 85822295

約数列:

[1, 5, 23, 29, 37, 41, 43, 115, 145, 185, 205, 215, 667, 851, 943, 989, 1073, 1189, 1247, 1517, 1591, 1763, 3335, 4255, 4715, 4945, 5365, 5945, 6235, 7585, 7955, 8815, 24679, 27347, 28681, 34891, 36593, 40549, 43993, 46139, 51127, 65231, 123395, 136735, 143405, 174455, 182965, 202745, 219965, 230695, 255635, 326155, 1011839, 1061197, 1175921, 1500313, 1891699, 5059195, 5305985, 5879605, 7501565, 9458495, 43509077, 217545385]

約数ペア:

[(1, 217545385), (5, 43509077), (23, 9458495), (29, 7501565), (37, 5879605), (41, 5305985), (43, 5059195), (115, 1891699), (145, 1500313), (185, 1175921), (205, 1061197), (215, 1011839), (667, 326155), (851, 255635), (943, 230695), (989, 219965), (1073, 202745), (1189, 182965), (1247, 174455), (1517, 143405), (1591, 136735), (1763, 123395), (3335, 65231), (4255, 51127), (4715, 46139), (4945, 43993), (5365, 40549), (5945, 36593), (6235, 34891), (7585, 28681), (7955, 27347), (8815, 24679)]