261784000

素因数分解:

$2^6\times 5^3\times {\mathrm{43}}^1\times {\mathrm{761}}^1$

素因数の和:831

約数の個数: 112

約数和(自身を含む): 664256736

約数和(自身を除く): 402472736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 64, 80, 86, 100, 125, 160, 172, 200, 215, 250, 320, 344, 400, 430, 500, 688, 761, 800, 860, 1000, 1075, 1376, 1522, 1600, 1720, 2000, 2150, 2752, 3044, 3440, 3805, 4000, 4300, 5375, 6088, 6880, 7610, 8000, 8600, 10750, 12176, 13760, 15220, 17200, 19025, 21500, 24352, 30440, 32723, 34400, 38050, 43000, 48704, 60880, 65446, 68800, 76100, 86000, 95125, 121760, 130892, 152200, 163615, 172000, 190250, 243520, 261784, 304400, 327230, 344000, 380500, 523568, 608800, 654460, 761000, 818075, 1047136, 1217600, 1308920, 1522000, 1636150, 2094272, 2617840, 3044000, 3272300, 4090375, 5235680, 6088000, 6544600, 8180750, 10471360, 13089200, 16361500, 26178400, 32723000, 52356800, 65446000, 130892000, 261784000]

約数ペア:

[(1, 261784000), (2, 130892000), (4, 65446000), (5, 52356800), (8, 32723000), (10, 26178400), (16, 16361500), (20, 13089200), (25, 10471360), (32, 8180750), (40, 6544600), (43, 6088000), (50, 5235680), (64, 4090375), (80, 3272300), (86, 3044000), (100, 2617840), (125, 2094272), (160, 1636150), (172, 1522000), (200, 1308920), (215, 1217600), (250, 1047136), (320, 818075), (344, 761000), (400, 654460), (430, 608800), (500, 523568), (688, 380500), (761, 344000), (800, 327230), (860, 304400), (1000, 261784), (1075, 243520), (1376, 190250), (1522, 172000), (1600, 163615), (1720, 152200), (2000, 130892), (2150, 121760), (2752, 95125), (3044, 86000), (3440, 76100), (3805, 68800), (4000, 65446), (4300, 60880), (5375, 48704), (6088, 43000), (6880, 38050), (7610, 34400), (8000, 32723), (8600, 30440), (10750, 24352), (12176, 21500), (13760, 19025), (15220, 17200)]