200809980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{809}}^1$

素因数の和:1028

約数の個数: 144

約数和(自身を含む): 700539840

約数和(自身を除く): 499729860

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, 197, 210, 252, 315, 394, 420, 591, 630, 788, 809, 985, 1182, 1260, 1379, 1618, 1773, 1970, 2364, 2427, 2758, 2955, 3236, 3546, 3940, 4045, 4137, 4854, 5516, 5663, 5910, 6895, 7092, 7281, 8090, 8274, 8865, 9708, 11326, 11820, 12135, 12411, 13790, 14562, 16180, 16548, 16989, 17730, 20685, 22652, 24270, 24822, 27580, 28315, 29124, 33978, 35460, 36405, 41370, 48540, 49644, 50967, 56630, 62055, 67956, 72810, 82740, 84945, 101934, 113260, 124110, 145620, 159373, 169890, 203868, 248220, 254835, 318746, 339780, 478119, 509670, 637492, 796865, 956238, 1019340, 1115611, 1434357, 1593730, 1912476, 2231222, 2390595, 2868714, 3187460, 3346833, 4462444, 4781190, 5578055, 5737428, 6693666, 7171785, 9562380, 10040499, 11156110, 13387332, 14343570, 16734165, 20080998, 22312220, 28687140, 33468330, 40161996, 50202495, 66936660, 100404990, 200809980]

約数ペア:

[(1, 200809980), (2, 100404990), (3, 66936660), (4, 50202495), (5, 40161996), (6, 33468330), (7, 28687140), (9, 22312220), (10, 20080998), (12, 16734165), (14, 14343570), (15, 13387332), (18, 11156110), (20, 10040499), (21, 9562380), (28, 7171785), (30, 6693666), (35, 5737428), (36, 5578055), (42, 4781190), (45, 4462444), (60, 3346833), (63, 3187460), (70, 2868714), (84, 2390595), (90, 2231222), (105, 1912476), (126, 1593730), (140, 1434357), (180, 1115611), (197, 1019340), (210, 956238), (252, 796865), (315, 637492), (394, 509670), (420, 478119), (591, 339780), (630, 318746), (788, 254835), (809, 248220), (985, 203868), (1182, 169890), (1260, 159373), (1379, 145620), (1618, 124110), (1773, 113260), (1970, 101934), (2364, 84945), (2427, 82740), (2758, 72810), (2955, 67956), (3236, 62055), (3546, 56630), (3940, 50967), (4045, 49644), (4137, 48540), (4854, 41370), (5516, 36405), (5663, 35460), (5910, 33978), (6895, 29124), (7092, 28315), (7281, 27580), (8090, 24822), (8274, 24270), (8865, 22652), (9708, 20685), (11326, 17730), (11820, 16989), (12135, 16548), (12411, 16180), (13790, 14562)]