291225880100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1722211}}^1$

素因数の和:1722333

約数の個数: 72

約数和(自身を含む): 672696007200

約数和(自身を除く): 381470127100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 89, 95, 100, 178, 190, 356, 380, 445, 475, 890, 950, 1691, 1780, 1900, 2225, 3382, 4450, 6764, 8455, 8900, 16910, 33820, 42275, 84550, 169100, 1722211, 3444422, 6888844, 8611055, 17222110, 32722009, 34444220, 43055275, 65444018, 86110550, 130888036, 153276779, 163610045, 172221100, 306553558, 327220090, 613107116, 654440180, 766383895, 818050225, 1532767790, 1636100450, 2912258801, 3065535580, 3272200900, 3831919475, 5824517602, 7663838950, 11649035204, 14561294005, 15327677900, 29122588010, 58245176020, 72806470025, 145612940050, 291225880100]

約数ペア:

[(1, 291225880100), (2, 145612940050), (4, 72806470025), (5, 58245176020), (10, 29122588010), (19, 15327677900), (20, 14561294005), (25, 11649035204), (38, 7663838950), (50, 5824517602), (76, 3831919475), (89, 3272200900), (95, 3065535580), (100, 2912258801), (178, 1636100450), (190, 1532767790), (356, 818050225), (380, 766383895), (445, 654440180), (475, 613107116), (890, 327220090), (950, 306553558), (1691, 172221100), (1780, 163610045), (1900, 153276779), (2225, 130888036), (3382, 86110550), (4450, 65444018), (6764, 43055275), (8455, 34444220), (8900, 32722009), (16910, 17222110), (33820, 8611055), (42275, 6888844), (84550, 3444422), (169100, 1722211)]