991808640

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{421}}^1$

素因数の和:855

約数の個数: 192

約数和(自身を含む): 3441367800

約数和(自身を除く): 2449559160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 288, 320, 360, 384, 409, 421, 480, 576, 640, 720, 818, 842, 960, 1152, 1227, 1263, 1440, 1636, 1684, 1920, 2045, 2105, 2454, 2526, 2880, 3272, 3368, 3681, 3789, 4090, 4210, 4908, 5052, 5760, 6135, 6315, 6544, 6736, 7362, 7578, 8180, 8420, 9816, 10104, 12270, 12630, 13088, 13472, 14724, 15156, 16360, 16840, 18405, 18945, 19632, 20208, 24540, 25260, 26176, 26944, 29448, 30312, 32720, 33680, 36810, 37890, 39264, 40416, 49080, 50520, 52352, 53888, 58896, 60624, 65440, 67360, 73620, 75780, 78528, 80832, 98160, 101040, 117792, 121248, 130880, 134720, 147240, 151560, 157056, 161664, 172189, 196320, 202080, 235584, 242496, 261760, 269440, 294480, 303120, 344378, 392640, 404160, 471168, 484992, 516567, 588960, 606240, 688756, 785280, 808320, 860945, 1033134, 1177920, 1212480, 1377512, 1549701, 1721890, 2066268, 2355840, 2424960, 2582835, 2755024, 3099402, 3443780, 4132536, 5165670, 5510048, 6198804, 6887560, 7748505, 8265072, 10331340, 11020096, 12397608, 13775120, 15497010, 16530144, 20662680, 22040192, 24795216, 27550240, 30994020, 33060288, 41325360, 49590432, 55100480, 61988040, 66120576, 82650720, 99180864, 110200960, 123976080, 165301440, 198361728, 247952160, 330602880, 495904320, 991808640]

約数ペア:

[(1, 991808640), (2, 495904320), (3, 330602880), (4, 247952160), (5, 198361728), (6, 165301440), (8, 123976080), (9, 110200960), (10, 99180864), (12, 82650720), (15, 66120576), (16, 61988040), (18, 55100480), (20, 49590432), (24, 41325360), (30, 33060288), (32, 30994020), (36, 27550240), (40, 24795216), (45, 22040192), (48, 20662680), (60, 16530144), (64, 15497010), (72, 13775120), (80, 12397608), (90, 11020096), (96, 10331340), (120, 8265072), (128, 7748505), (144, 6887560), (160, 6198804), (180, 5510048), (192, 5165670), (240, 4132536), (288, 3443780), (320, 3099402), (360, 2755024), (384, 2582835), (409, 2424960), (421, 2355840), (480, 2066268), (576, 1721890), (640, 1549701), (720, 1377512), (818, 1212480), (842, 1177920), (960, 1033134), (1152, 860945), (1227, 808320), (1263, 785280), (1440, 688756), (1636, 606240), (1684, 588960), (1920, 516567), (2045, 484992), (2105, 471168), (2454, 404160), (2526, 392640), (2880, 344378), (3272, 303120), (3368, 294480), (3681, 269440), (3789, 261760), (4090, 242496), (4210, 235584), (4908, 202080), (5052, 196320), (5760, 172189), (6135, 161664), (6315, 157056), (6544, 151560), (6736, 147240), (7362, 134720), (7578, 130880), (8180, 121248), (8420, 117792), (9816, 101040), (10104, 98160), (12270, 80832), (12630, 78528), (13088, 75780), (13472, 73620), (14724, 67360), (15156, 65440), (16360, 60624), (16840, 58896), (18405, 53888), (18945, 52352), (19632, 50520), (20208, 49080), (24540, 40416), (25260, 39264), (26176, 37890), (26944, 36810), (29448, 33680), (30312, 32720)]