638049308

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{4259}}^1$

素因数の和:4386

約数の個数: 48

約数和(自身を含む): 1249100160

約数和(自身を除く): 611050852

約数列:

[1, 2, 4, 13, 26, 43, 52, 67, 86, 134, 172, 268, 559, 871, 1118, 1742, 2236, 2881, 3484, 4259, 5762, 8518, 11524, 17036, 37453, 55367, 74906, 110734, 149812, 183137, 221468, 285353, 366274, 570706, 732548, 1141412, 2380781, 3709589, 4761562, 7419178, 9523124, 12270179, 14838356, 24540358, 49080716, 159512327, 319024654, 638049308]

約数ペア:

[(1, 638049308), (2, 319024654), (4, 159512327), (13, 49080716), (26, 24540358), (43, 14838356), (52, 12270179), (67, 9523124), (86, 7419178), (134, 4761562), (172, 3709589), (268, 2380781), (559, 1141412), (871, 732548), (1118, 570706), (1742, 366274), (2236, 285353), (2881, 221468), (3484, 183137), (4259, 149812), (5762, 110734), (8518, 74906), (11524, 55367), (17036, 37453)]