77803180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 212357376

約数和(自身を除く): 134554196

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 91, 98, 124, 130, 140, 155, 182, 196, 197, 217, 245, 260, 310, 364, 394, 403, 434, 455, 490, 620, 637, 788, 806, 868, 910, 980, 985, 1085, 1274, 1379, 1519, 1612, 1820, 1970, 2015, 2170, 2548, 2561, 2758, 2821, 3038, 3185, 3940, 4030, 4340, 5122, 5516, 5642, 6076, 6107, 6370, 6895, 7595, 8060, 9653, 10244, 11284, 12214, 12740, 12805, 13790, 14105, 15190, 17927, 19306, 19747, 24428, 25610, 27580, 28210, 30380, 30535, 35854, 38612, 39494, 42749, 48265, 51220, 56420, 61070, 71708, 78988, 79391, 85498, 89635, 96530, 98735, 122140, 125489, 158782, 170996, 179270, 193060, 197470, 213745, 250978, 299243, 317564, 358540, 394940, 396955, 427490, 501956, 555737, 598486, 627445, 793910, 854980, 1111474, 1196972, 1254890, 1496215, 1587820, 2222948, 2509780, 2778685, 2992430, 3890159, 5557370, 5984860, 7780318, 11114740, 15560636, 19450795, 38901590, 77803180]

約数ペア:

[(1, 77803180), (2, 38901590), (4, 19450795), (5, 15560636), (7, 11114740), (10, 7780318), (13, 5984860), (14, 5557370), (20, 3890159), (26, 2992430), (28, 2778685), (31, 2509780), (35, 2222948), (49, 1587820), (52, 1496215), (62, 1254890), (65, 1196972), (70, 1111474), (91, 854980), (98, 793910), (124, 627445), (130, 598486), (140, 555737), (155, 501956), (182, 427490), (196, 396955), (197, 394940), (217, 358540), (245, 317564), (260, 299243), (310, 250978), (364, 213745), (394, 197470), (403, 193060), (434, 179270), (455, 170996), (490, 158782), (620, 125489), (637, 122140), (788, 98735), (806, 96530), (868, 89635), (910, 85498), (980, 79391), (985, 78988), (1085, 71708), (1274, 61070), (1379, 56420), (1519, 51220), (1612, 48265), (1820, 42749), (1970, 39494), (2015, 38612), (2170, 35854), (2548, 30535), (2561, 30380), (2758, 28210), (2821, 27580), (3038, 25610), (3185, 24428), (3940, 19747), (4030, 19306), (4340, 17927), (5122, 15190), (5516, 14105), (5642, 13790), (6076, 12805), (6107, 12740), (6370, 12214), (6895, 11284), (7595, 10244), (8060, 9653)]