21039600

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:307

約数の個数: 120

約数和(自身を含む): 68500080

約数和(自身を除く): 47460480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 89, 100, 120, 150, 178, 197, 200, 240, 267, 300, 356, 394, 400, 445, 534, 591, 600, 712, 788, 890, 985, 1068, 1182, 1200, 1335, 1424, 1576, 1780, 1970, 2136, 2225, 2364, 2670, 2955, 3152, 3560, 3940, 4272, 4450, 4728, 4925, 5340, 5910, 6675, 7120, 7880, 8900, 9456, 9850, 10680, 11820, 13350, 14775, 15760, 17533, 17800, 19700, 21360, 23640, 26700, 29550, 35066, 35600, 39400, 47280, 52599, 53400, 59100, 70132, 78800, 87665, 105198, 106800, 118200, 140264, 175330, 210396, 236400, 262995, 280528, 350660, 420792, 438325, 525990, 701320, 841584, 876650, 1051980, 1314975, 1402640, 1753300, 2103960, 2629950, 3506600, 4207920, 5259900, 7013200, 10519800, 21039600]

約数ペア:

[(1, 21039600), (2, 10519800), (3, 7013200), (4, 5259900), (5, 4207920), (6, 3506600), (8, 2629950), (10, 2103960), (12, 1753300), (15, 1402640), (16, 1314975), (20, 1051980), (24, 876650), (25, 841584), (30, 701320), (40, 525990), (48, 438325), (50, 420792), (60, 350660), (75, 280528), (80, 262995), (89, 236400), (100, 210396), (120, 175330), (150, 140264), (178, 118200), (197, 106800), (200, 105198), (240, 87665), (267, 78800), (300, 70132), (356, 59100), (394, 53400), (400, 52599), (445, 47280), (534, 39400), (591, 35600), (600, 35066), (712, 29550), (788, 26700), (890, 23640), (985, 21360), (1068, 19700), (1182, 17800), (1200, 17533), (1335, 15760), (1424, 14775), (1576, 13350), (1780, 11820), (1970, 10680), (2136, 9850), (2225, 9456), (2364, 8900), (2670, 7880), (2955, 7120), (3152, 6675), (3560, 5910), (3940, 5340), (4272, 4925), (4450, 4728)]