128493295

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 200540160

約数和(自身を除く): 72046865

約数列:

[1, 5, 7, 19, 23, 31, 35, 95, 115, 133, 155, 161, 217, 271, 437, 589, 665, 713, 805, 1085, 1355, 1897, 2185, 2945, 3059, 3565, 4123, 4991, 5149, 6233, 8401, 9485, 13547, 15295, 20615, 24955, 25745, 31165, 36043, 42005, 43631, 58807, 67735, 94829, 118427, 159619, 180215, 193223, 218155, 294035, 474145, 592135, 798095, 828989, 966115, 1117333, 1352561, 3671237, 4144945, 5586665, 6762805, 18356185, 25698659, 128493295]

約数ペア:

[(1, 128493295), (5, 25698659), (7, 18356185), (19, 6762805), (23, 5586665), (31, 4144945), (35, 3671237), (95, 1352561), (115, 1117333), (133, 966115), (155, 828989), (161, 798095), (217, 592135), (271, 474145), (437, 294035), (589, 218155), (665, 193223), (713, 180215), (805, 159619), (1085, 118427), (1355, 94829), (1897, 67735), (2185, 58807), (2945, 43631), (3059, 42005), (3565, 36043), (4123, 31165), (4991, 25745), (5149, 24955), (6233, 20615), (8401, 15295), (9485, 13547)]