20171499340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1\times {\mathrm{881}}^1$

素因数の和:1675

約数の個数: 96

約数和(自身を含む): 45208497600

約数和(自身を除く): 25036998260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 677, 881, 890, 1354, 1691, 1762, 1780, 2708, 3382, 3385, 3524, 4405, 6764, 6770, 8455, 8810, 12863, 13540, 16739, 16910, 17620, 25726, 33478, 33820, 51452, 60253, 64315, 66956, 78409, 83695, 120506, 128630, 156818, 167390, 241012, 257260, 301265, 313636, 334780, 392045, 596437, 602530, 784090, 1144807, 1192874, 1205060, 1489771, 1568180, 2289614, 2385748, 2979542, 2982185, 4579228, 5724035, 5959084, 5964370, 7448855, 11332303, 11448070, 11928740, 14897710, 22664606, 22896140, 29795420, 45329212, 53082893, 56661515, 106165786, 113323030, 212331572, 226646060, 265414465, 530828930, 1008574967, 1061657860, 2017149934, 4034299868, 5042874835, 10085749670, 20171499340]

約数ペア:

[(1, 20171499340), (2, 10085749670), (4, 5042874835), (5, 4034299868), (10, 2017149934), (19, 1061657860), (20, 1008574967), (38, 530828930), (76, 265414465), (89, 226646060), (95, 212331572), (178, 113323030), (190, 106165786), (356, 56661515), (380, 53082893), (445, 45329212), (677, 29795420), (881, 22896140), (890, 22664606), (1354, 14897710), (1691, 11928740), (1762, 11448070), (1780, 11332303), (2708, 7448855), (3382, 5964370), (3385, 5959084), (3524, 5724035), (4405, 4579228), (6764, 2982185), (6770, 2979542), (8455, 2385748), (8810, 2289614), (12863, 1568180), (13540, 1489771), (16739, 1205060), (16910, 1192874), (17620, 1144807), (25726, 784090), (33478, 602530), (33820, 596437), (51452, 392045), (60253, 334780), (64315, 313636), (66956, 301265), (78409, 257260), (83695, 241012), (120506, 167390), (128630, 156818)]