16390075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 23748480

約数和(自身を除く): 7358405

約数列:

[1, 5, 13, 25, 29, 37, 47, 65, 145, 185, 235, 325, 377, 481, 611, 725, 925, 1073, 1175, 1363, 1739, 1885, 2405, 3055, 5365, 6815, 8695, 9425, 12025, 13949, 15275, 17719, 22607, 26825, 34075, 43475, 50431, 69745, 88595, 113035, 252155, 348725, 442975, 565175, 655603, 1260775, 3278015, 16390075]

約数ペア:

[(1, 16390075), (5, 3278015), (13, 1260775), (25, 655603), (29, 565175), (37, 442975), (47, 348725), (65, 252155), (145, 113035), (185, 88595), (235, 69745), (325, 50431), (377, 43475), (481, 34075), (611, 26825), (725, 22607), (925, 17719), (1073, 15275), (1175, 13949), (1363, 12025), (1739, 9425), (1885, 8695), (2405, 6815), (3055, 5365)]