19995202080

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{661217}}^1$

素因数の和:661248

約数の個数: 192

約数和(自身を含む): 79980929280

約数和(自身を除く): 59985727200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 30240, 661217, 1322434, 1983651, 2644868, 3306085, 3967302, 4628519, 5289736, 5950953, 6612170, 7934604, 9257038, 9918255, 10579472, 11901906, 13224340, 13885557, 15869208, 17852859, 18514076, 19836510, 21158944, 23142595, 23803812, 26448680, 27771114, 29754765, 31738416, 35705718, 37028152, 39673020, 41656671, 46285190, 47607624, 52897360, 55542228, 59509530, 63476832, 69427785, 71411436, 74056304, 79346040, 83313342, 89264295, 92570380, 95215248, 105794720, 111084456, 119019060, 124970013, 138855570, 142822872, 148112608, 158692080, 166626684, 178528590, 185140760, 190430496, 208283355, 222168912, 238038120, 249940026, 277711140, 285645744, 317384160, 333253368, 357057180, 370281520, 416566710, 444337824, 476076240, 499880052, 555422280, 571291488, 624850065, 666506736, 714114360, 740563040, 833133420, 952152480, 999760104, 1110844560, 1249700130, 1333013472, 1428228720, 1666266840, 1999520208, 2221689120, 2499400260, 2856457440, 3332533680, 3999040416, 4998800520, 6665067360, 9997601040, 19995202080]

約数ペア:

[(1, 19995202080), (2, 9997601040), (3, 6665067360), (4, 4998800520), (5, 3999040416), (6, 3332533680), (7, 2856457440), (8, 2499400260), (9, 2221689120), (10, 1999520208), (12, 1666266840), (14, 1428228720), (15, 1333013472), (16, 1249700130), (18, 1110844560), (20, 999760104), (21, 952152480), (24, 833133420), (27, 740563040), (28, 714114360), (30, 666506736), (32, 624850065), (35, 571291488), (36, 555422280), (40, 499880052), (42, 476076240), (45, 444337824), (48, 416566710), (54, 370281520), (56, 357057180), (60, 333253368), (63, 317384160), (70, 285645744), (72, 277711140), (80, 249940026), (84, 238038120), (90, 222168912), (96, 208283355), (105, 190430496), (108, 185140760), (112, 178528590), (120, 166626684), (126, 158692080), (135, 148112608), (140, 142822872), (144, 138855570), (160, 124970013), (168, 119019060), (180, 111084456), (189, 105794720), (210, 95215248), (216, 92570380), (224, 89264295), (240, 83313342), (252, 79346040), (270, 74056304), (280, 71411436), (288, 69427785), (315, 63476832), (336, 59509530), (360, 55542228), (378, 52897360), (420, 47607624), (432, 46285190), (480, 41656671), (504, 39673020), (540, 37028152), (560, 35705718), (630, 31738416), (672, 29754765), (720, 27771114), (756, 26448680), (840, 23803812), (864, 23142595), (945, 21158944), (1008, 19836510), (1080, 18514076), (1120, 17852859), (1260, 15869208), (1440, 13885557), (1512, 13224340), (1680, 11901906), (1890, 10579472), (2016, 9918255), (2160, 9257038), (2520, 7934604), (3024, 6612170), (3360, 5950953), (3780, 5289736), (4320, 4628519), (5040, 3967302), (6048, 3306085), (7560, 2644868), (10080, 1983651), (15120, 1322434), (30240, 661217)]