212905980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:369

約数の個数: 216

約数和(自身を含む): 761866560

約数和(自身を除く): 548960580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 101, 105, 126, 140, 147, 180, 196, 202, 210, 239, 245, 252, 294, 303, 315, 404, 420, 441, 478, 490, 505, 588, 606, 630, 707, 717, 735, 882, 909, 956, 980, 1010, 1195, 1212, 1260, 1414, 1434, 1470, 1515, 1673, 1764, 1818, 2020, 2121, 2151, 2205, 2390, 2828, 2868, 2940, 3030, 3346, 3535, 3585, 3636, 4242, 4302, 4410, 4545, 4780, 4949, 5019, 6060, 6363, 6692, 7070, 7170, 8365, 8484, 8604, 8820, 9090, 9898, 10038, 10605, 10755, 11711, 12726, 14140, 14340, 14847, 15057, 16730, 18180, 19796, 20076, 21210, 21510, 23422, 24139, 24745, 25095, 25452, 29694, 30114, 31815, 33460, 35133, 42420, 43020, 44541, 46844, 48278, 49490, 50190, 58555, 59388, 60228, 63630, 70266, 72417, 74235, 75285, 89082, 96556, 98980, 100380, 105399, 117110, 120695, 127260, 140532, 144834, 148470, 150570, 168973, 175665, 178164, 210798, 217251, 222705, 234220, 241390, 289668, 296940, 301140, 337946, 351330, 362085, 421596, 434502, 445410, 482780, 506919, 526995, 675892, 702660, 724170, 844865, 869004, 890820, 1013838, 1053990, 1086255, 1182811, 1448340, 1520757, 1689730, 2027676, 2107980, 2172510, 2365622, 2534595, 3041514, 3379460, 3548433, 4345020, 4731244, 5069190, 5914055, 6083028, 7096866, 7603785, 10138380, 10645299, 11828110, 14193732, 15207570, 17742165, 21290598, 23656220, 30415140, 35484330, 42581196, 53226495, 70968660, 106452990, 212905980]

約数ペア:

[(1, 212905980), (2, 106452990), (3, 70968660), (4, 53226495), (5, 42581196), (6, 35484330), (7, 30415140), (9, 23656220), (10, 21290598), (12, 17742165), (14, 15207570), (15, 14193732), (18, 11828110), (20, 10645299), (21, 10138380), (28, 7603785), (30, 7096866), (35, 6083028), (36, 5914055), (42, 5069190), (45, 4731244), (49, 4345020), (60, 3548433), (63, 3379460), (70, 3041514), (84, 2534595), (90, 2365622), (98, 2172510), (101, 2107980), (105, 2027676), (126, 1689730), (140, 1520757), (147, 1448340), (180, 1182811), (196, 1086255), (202, 1053990), (210, 1013838), (239, 890820), (245, 869004), (252, 844865), (294, 724170), (303, 702660), (315, 675892), (404, 526995), (420, 506919), (441, 482780), (478, 445410), (490, 434502), (505, 421596), (588, 362085), (606, 351330), (630, 337946), (707, 301140), (717, 296940), (735, 289668), (882, 241390), (909, 234220), (956, 222705), (980, 217251), (1010, 210798), (1195, 178164), (1212, 175665), (1260, 168973), (1414, 150570), (1434, 148470), (1470, 144834), (1515, 140532), (1673, 127260), (1764, 120695), (1818, 117110), (2020, 105399), (2121, 100380), (2151, 98980), (2205, 96556), (2390, 89082), (2828, 75285), (2868, 74235), (2940, 72417), (3030, 70266), (3346, 63630), (3535, 60228), (3585, 59388), (3636, 58555), (4242, 50190), (4302, 49490), (4410, 48278), (4545, 46844), (4780, 44541), (4949, 43020), (5019, 42420), (6060, 35133), (6363, 33460), (6692, 31815), (7070, 30114), (7170, 29694), (8365, 25452), (8484, 25095), (8604, 24745), (8820, 24139), (9090, 23422), (9898, 21510), (10038, 21210), (10605, 20076), (10755, 19796), (11711, 18180), (12726, 16730), (14140, 15057), (14340, 14847)]