856760940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{679969}}^1$

素因数の和:679991

約数の個数: 72

約数和(自身を含む): 2970108960

約数和(自身を除く): 2113348020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 679969, 1359938, 2039907, 2719876, 3399845, 4079814, 4759783, 6119721, 6799690, 8159628, 9519566, 10199535, 12239442, 13599380, 14279349, 19039132, 20399070, 23798915, 24478884, 28558698, 30598605, 40798140, 42838047, 47597830, 57117396, 61197210, 71396745, 85676094, 95195660, 122394420, 142793490, 171352188, 214190235, 285586980, 428380470, 856760940]

約数ペア:

[(1, 856760940), (2, 428380470), (3, 285586980), (4, 214190235), (5, 171352188), (6, 142793490), (7, 122394420), (9, 95195660), (10, 85676094), (12, 71396745), (14, 61197210), (15, 57117396), (18, 47597830), (20, 42838047), (21, 40798140), (28, 30598605), (30, 28558698), (35, 24478884), (36, 23798915), (42, 20399070), (45, 19039132), (60, 14279349), (63, 13599380), (70, 12239442), (84, 10199535), (90, 9519566), (105, 8159628), (126, 6799690), (140, 6119721), (180, 4759783), (210, 4079814), (252, 3399845), (315, 2719876), (420, 2039907), (630, 1359938), (1260, 679969)]