388464025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{659}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 545054400

約数和(自身を除く): 156590375

約数列:

[1, 5, 17, 19, 25, 73, 85, 95, 323, 365, 425, 475, 659, 1241, 1387, 1615, 1825, 3295, 6205, 6935, 8075, 11203, 12521, 16475, 23579, 31025, 34675, 48107, 56015, 62605, 117895, 212857, 240535, 280075, 313025, 589475, 817819, 914033, 1064285, 1202675, 4089095, 4570165, 5321425, 15538561, 20445475, 22850825, 77692805, 388464025]

約数ペア:

[(1, 388464025), (5, 77692805), (17, 22850825), (19, 20445475), (25, 15538561), (73, 5321425), (85, 4570165), (95, 4089095), (323, 1202675), (365, 1064285), (425, 914033), (475, 817819), (659, 589475), (1241, 313025), (1387, 280075), (1615, 240535), (1825, 212857), (3295, 117895), (6205, 62605), (6935, 56015), (8075, 48107), (11203, 34675), (12521, 31025), (16475, 23579)]