128643025

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1031}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 196558848

約数和(自身を除く): 67915823

約数列:

[1, 5, 7, 23, 25, 31, 35, 115, 155, 161, 175, 217, 575, 713, 775, 805, 1031, 1085, 3565, 4025, 4991, 5155, 5425, 7217, 17825, 23713, 24955, 25775, 31961, 36085, 118565, 124775, 159805, 165991, 180425, 223727, 592825, 735103, 799025, 829955, 1118635, 3675515, 4149775, 5145721, 5593175, 18377575, 25728605, 128643025]

約数ペア:

[(1, 128643025), (5, 25728605), (7, 18377575), (23, 5593175), (25, 5145721), (31, 4149775), (35, 3675515), (115, 1118635), (155, 829955), (161, 799025), (175, 735103), (217, 592825), (575, 223727), (713, 180425), (775, 165991), (805, 159805), (1031, 124775), (1085, 118565), (3565, 36085), (4025, 31961), (4991, 25775), (5155, 24955), (5425, 23713), (7217, 17825)]