75721995

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{103}}^1$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 144993888

約数和(自身を除く): 69271893

約数列:

[1, 3, 5, 9, 15, 17, 31, 45, 51, 85, 93, 103, 153, 155, 255, 279, 309, 465, 515, 527, 765, 927, 961, 1395, 1545, 1581, 1751, 2635, 2883, 3193, 4635, 4743, 4805, 5253, 7905, 8649, 8755, 9579, 14415, 15759, 15965, 16337, 23715, 26265, 28737, 43245, 47895, 49011, 54281, 78795, 81685, 98983, 143685, 147033, 162843, 245055, 271405, 296949, 488529, 494915, 735165, 814215, 890847, 1484745, 1682711, 2442645, 4454235, 5048133, 8413555, 15144399, 25240665, 75721995]

約数ペア:

[(1, 75721995), (3, 25240665), (5, 15144399), (9, 8413555), (15, 5048133), (17, 4454235), (31, 2442645), (45, 1682711), (51, 1484745), (85, 890847), (93, 814215), (103, 735165), (153, 494915), (155, 488529), (255, 296949), (279, 271405), (309, 245055), (465, 162843), (515, 147033), (527, 143685), (765, 98983), (927, 81685), (961, 78795), (1395, 54281), (1545, 49011), (1581, 47895), (1751, 43245), (2635, 28737), (2883, 26265), (3193, 23715), (4635, 16337), (4743, 15965), (4805, 15759), (5253, 14415), (7905, 9579), (8649, 8755)]