201639025

素因数分解:

$5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 296231040

約数和(自身を除く): 94592015

約数列:

[1, 5, 7, 25, 35, 41, 157, 175, 179, 205, 287, 785, 895, 1025, 1099, 1253, 1435, 3925, 4475, 5495, 6265, 6437, 7175, 7339, 27475, 28103, 31325, 32185, 36695, 45059, 51373, 140515, 160925, 183475, 196721, 225295, 256865, 702575, 983605, 1126475, 1152223, 1284325, 4918025, 5761115, 8065561, 28805575, 40327805, 201639025]

約数ペア:

[(1, 201639025), (5, 40327805), (7, 28805575), (25, 8065561), (35, 5761115), (41, 4918025), (157, 1284325), (175, 1152223), (179, 1126475), (205, 983605), (287, 702575), (785, 256865), (895, 225295), (1025, 196721), (1099, 183475), (1253, 160925), (1435, 140515), (3925, 51373), (4475, 45059), (5495, 36695), (6265, 32185), (6437, 31325), (7175, 28103), (7339, 27475)]