205799545

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 313344000

約数和(自身を除く): 107544455

約数列:

[1, 5, 7, 19, 31, 35, 67, 95, 133, 149, 155, 217, 335, 469, 589, 665, 745, 1043, 1085, 1273, 2077, 2345, 2831, 2945, 4123, 4619, 5215, 6365, 8911, 9983, 10385, 14155, 14539, 19817, 20615, 23095, 32333, 39463, 44555, 49915, 69881, 72695, 87761, 99085, 161665, 189677, 197315, 276241, 309473, 349405, 438805, 614327, 948385, 1327739, 1381205, 1547365, 2166311, 3071635, 5879987, 6638695, 10831555, 29399935, 41159909, 205799545]

約数ペア:

[(1, 205799545), (5, 41159909), (7, 29399935), (19, 10831555), (31, 6638695), (35, 5879987), (67, 3071635), (95, 2166311), (133, 1547365), (149, 1381205), (155, 1327739), (217, 948385), (335, 614327), (469, 438805), (589, 349405), (665, 309473), (745, 276241), (1043, 197315), (1085, 189677), (1273, 161665), (2077, 99085), (2345, 87761), (2831, 72695), (2945, 69881), (4123, 49915), (4619, 44555), (5215, 39463), (6365, 32333), (8911, 23095), (9983, 20615), (10385, 19817), (14155, 14539)]