212728395

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{419}}^1$

素因数の和:636

約数の個数: 64

約数和(自身を含む): 396264960

約数和(自身を除く): 183536565

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 181, 187, 255, 419, 543, 561, 905, 935, 1257, 1991, 2095, 2715, 2805, 3077, 4609, 5973, 6285, 7123, 9231, 9955, 13827, 15385, 21369, 23045, 29865, 33847, 35615, 46155, 69135, 75839, 78353, 101541, 106845, 169235, 227517, 235059, 379195, 391765, 507705, 834229, 1137585, 1175295, 1289263, 2502687, 3867789, 4171145, 6446315, 12513435, 14181893, 19338945, 42545679, 70909465, 212728395]

約数ペア:

[(1, 212728395), (3, 70909465), (5, 42545679), (11, 19338945), (15, 14181893), (17, 12513435), (33, 6446315), (51, 4171145), (55, 3867789), (85, 2502687), (165, 1289263), (181, 1175295), (187, 1137585), (255, 834229), (419, 507705), (543, 391765), (561, 379195), (905, 235059), (935, 227517), (1257, 169235), (1991, 106845), (2095, 101541), (2715, 78353), (2805, 75839), (3077, 69135), (4609, 46155), (5973, 35615), (6285, 33847), (7123, 29865), (9231, 23045), (9955, 21369), (13827, 15385)]