128401525

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 202973120

約数和(自身を除く): 74571595

約数列:

[1, 5, 7, 19, 23, 25, 35, 73, 95, 115, 133, 161, 175, 365, 437, 475, 511, 529, 575, 665, 805, 1387, 1679, 1825, 2185, 2555, 2645, 3059, 3325, 3703, 4025, 6935, 8395, 9709, 10051, 10925, 11753, 12775, 13225, 15295, 18515, 31901, 34675, 38617, 41975, 48545, 50255, 58765, 70357, 76475, 92575, 159505, 193085, 223307, 242725, 251275, 270319, 293825, 351785, 733723, 797525, 965425, 1116535, 1351595, 1758925, 3668615, 5136061, 5582675, 6757975, 18343075, 25680305, 128401525]

約数ペア:

[(1, 128401525), (5, 25680305), (7, 18343075), (19, 6757975), (23, 5582675), (25, 5136061), (35, 3668615), (73, 1758925), (95, 1351595), (115, 1116535), (133, 965425), (161, 797525), (175, 733723), (365, 351785), (437, 293825), (475, 270319), (511, 251275), (529, 242725), (575, 223307), (665, 193085), (805, 159505), (1387, 92575), (1679, 76475), (1825, 70357), (2185, 58765), (2555, 50255), (2645, 48545), (3059, 41975), (3325, 38617), (3703, 34675), (4025, 31901), (6935, 18515), (8395, 15295), (9709, 13225), (10051, 12775), (10925, 11753)]