51894040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1999}}^1$

素因数の和:2080

約数の個数: 64

約数和(自身を含む): 129600000

約数和(自身を除く): 77705960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 590, 649, 1180, 1298, 1999, 2360, 2596, 3245, 3998, 5192, 6490, 7996, 9995, 12980, 15992, 19990, 21989, 25960, 39980, 43978, 79960, 87956, 109945, 117941, 175912, 219890, 235882, 439780, 471764, 589705, 879560, 943528, 1179410, 1297351, 2358820, 2594702, 4717640, 5189404, 6486755, 10378808, 12973510, 25947020, 51894040]

約数ペア:

[(1, 51894040), (2, 25947020), (4, 12973510), (5, 10378808), (8, 6486755), (10, 5189404), (11, 4717640), (20, 2594702), (22, 2358820), (40, 1297351), (44, 1179410), (55, 943528), (59, 879560), (88, 589705), (110, 471764), (118, 439780), (220, 235882), (236, 219890), (295, 175912), (440, 117941), (472, 109945), (590, 87956), (649, 79960), (1180, 43978), (1298, 39980), (1999, 25960), (2360, 21989), (2596, 19990), (3245, 15992), (3998, 12980), (5192, 9995), (6490, 7996)]