20781978720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{12619}}^1$

素因数の和:12757

約数の個数: 192

約数和(自身を含む): 67777274880

約数和(自身を除く): 46995296160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 47, 48, 60, 73, 80, 94, 96, 120, 141, 146, 160, 188, 219, 235, 240, 282, 292, 365, 376, 438, 470, 480, 564, 584, 705, 730, 752, 876, 940, 1095, 1128, 1168, 1410, 1460, 1504, 1752, 1880, 2190, 2256, 2336, 2820, 2920, 3431, 3504, 3760, 4380, 4512, 5640, 5840, 6862, 7008, 7520, 8760, 10293, 11280, 11680, 12619, 13724, 17155, 17520, 20586, 22560, 25238, 27448, 34310, 35040, 37857, 41172, 50476, 51465, 54896, 63095, 68620, 75714, 82344, 100952, 102930, 109792, 126190, 137240, 151428, 164688, 189285, 201904, 205860, 252380, 274480, 302856, 329376, 378570, 403808, 411720, 504760, 548960, 593093, 605712, 757140, 823440, 921187, 1009520, 1186186, 1211424, 1514280, 1646880, 1779279, 1842374, 2019040, 2372372, 2763561, 2965465, 3028560, 3558558, 3684748, 4605935, 4744744, 5527122, 5930930, 6057120, 7117116, 7369496, 8896395, 9211870, 9489488, 11054244, 11861860, 13817805, 14234232, 14738992, 17792790, 18423740, 18978976, 22108488, 23723720, 27635610, 28468464, 29477984, 35585580, 36847480, 43295789, 44216976, 47447440, 55271220, 56936928, 71171160, 73694960, 86591578, 88433952, 94894880, 110542440, 129887367, 142342320, 147389920, 173183156, 216478945, 221084880, 259774734, 284684640, 346366312, 432957890, 442169760, 519549468, 649436835, 692732624, 865915780, 1039098936, 1298873670, 1385465248, 1731831560, 2078197872, 2597747340, 3463663120, 4156395744, 5195494680, 6927326240, 10390989360, 20781978720]

約数ペア:

[(1, 20781978720), (2, 10390989360), (3, 6927326240), (4, 5195494680), (5, 4156395744), (6, 3463663120), (8, 2597747340), (10, 2078197872), (12, 1731831560), (15, 1385465248), (16, 1298873670), (20, 1039098936), (24, 865915780), (30, 692732624), (32, 649436835), (40, 519549468), (47, 442169760), (48, 432957890), (60, 346366312), (73, 284684640), (80, 259774734), (94, 221084880), (96, 216478945), (120, 173183156), (141, 147389920), (146, 142342320), (160, 129887367), (188, 110542440), (219, 94894880), (235, 88433952), (240, 86591578), (282, 73694960), (292, 71171160), (365, 56936928), (376, 55271220), (438, 47447440), (470, 44216976), (480, 43295789), (564, 36847480), (584, 35585580), (705, 29477984), (730, 28468464), (752, 27635610), (876, 23723720), (940, 22108488), (1095, 18978976), (1128, 18423740), (1168, 17792790), (1410, 14738992), (1460, 14234232), (1504, 13817805), (1752, 11861860), (1880, 11054244), (2190, 9489488), (2256, 9211870), (2336, 8896395), (2820, 7369496), (2920, 7117116), (3431, 6057120), (3504, 5930930), (3760, 5527122), (4380, 4744744), (4512, 4605935), (5640, 3684748), (5840, 3558558), (6862, 3028560), (7008, 2965465), (7520, 2763561), (8760, 2372372), (10293, 2019040), (11280, 1842374), (11680, 1779279), (12619, 1646880), (13724, 1514280), (17155, 1211424), (17520, 1186186), (20586, 1009520), (22560, 921187), (25238, 823440), (27448, 757140), (34310, 605712), (35040, 593093), (37857, 548960), (41172, 504760), (50476, 411720), (51465, 403808), (54896, 378570), (63095, 329376), (68620, 302856), (75714, 274480), (82344, 252380), (100952, 205860), (102930, 201904), (109792, 189285), (126190, 164688), (137240, 151428)]