639258225

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{2801}}^1$

素因数の和:3010

約数の個数: 48

約数和(自身を含む): 1125731520

約数和(自身を除く): 486473295

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 179, 255, 425, 537, 895, 1275, 2685, 2801, 3043, 4475, 8403, 9129, 13425, 14005, 15215, 42015, 45645, 47617, 70025, 76075, 142851, 210075, 228225, 238085, 501379, 714255, 1190425, 1504137, 2506895, 3571275, 7520685, 8523443, 12534475, 25570329, 37603425, 42617215, 127851645, 213086075, 639258225]

約数ペア:

[(1, 639258225), (3, 213086075), (5, 127851645), (15, 42617215), (17, 37603425), (25, 25570329), (51, 12534475), (75, 8523443), (85, 7520685), (179, 3571275), (255, 2506895), (425, 1504137), (537, 1190425), (895, 714255), (1275, 501379), (2685, 238085), (2801, 228225), (3043, 210075), (4475, 142851), (8403, 76075), (9129, 70025), (13425, 47617), (14005, 45645), (15215, 42015)]