209976075

素因数分解:

$3^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{11813}}^1$

素因数の和:11908

約数の個数: 36

約数和(自身を含む): 380883360

約数和(自身を除く): 170907285

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 79, 225, 237, 395, 711, 1185, 1975, 3555, 5925, 11813, 17775, 35439, 59065, 106317, 177195, 295325, 531585, 885975, 933227, 2657925, 2799681, 4666135, 8399043, 13998405, 23330675, 41995215, 69992025, 209976075]

約数ペア:

[(1, 209976075), (3, 69992025), (5, 41995215), (9, 23330675), (15, 13998405), (25, 8399043), (45, 4666135), (75, 2799681), (79, 2657925), (225, 933227), (237, 885975), (395, 531585), (711, 295325), (1185, 177195), (1975, 106317), (3555, 59065), (5925, 35439), (11813, 17775)]