19657400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{739}}^1$

素因数の和:781

約数の個数: 96

約数和(自身を含む): 55056000

約数和(自身を除く): 35398600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 25, 28, 35, 38, 40, 50, 56, 70, 76, 95, 100, 133, 140, 152, 175, 190, 200, 266, 280, 350, 380, 475, 532, 665, 700, 739, 760, 950, 1064, 1330, 1400, 1478, 1900, 2660, 2956, 3325, 3695, 3800, 5173, 5320, 5912, 6650, 7390, 10346, 13300, 14041, 14780, 18475, 20692, 25865, 26600, 28082, 29560, 36950, 41384, 51730, 56164, 70205, 73900, 98287, 103460, 112328, 129325, 140410, 147800, 196574, 206920, 258650, 280820, 351025, 393148, 491435, 517300, 561640, 702050, 786296, 982870, 1034600, 1404100, 1965740, 2457175, 2808200, 3931480, 4914350, 9828700, 19657400]

約数ペア:

[(1, 19657400), (2, 9828700), (4, 4914350), (5, 3931480), (7, 2808200), (8, 2457175), (10, 1965740), (14, 1404100), (19, 1034600), (20, 982870), (25, 786296), (28, 702050), (35, 561640), (38, 517300), (40, 491435), (50, 393148), (56, 351025), (70, 280820), (76, 258650), (95, 206920), (100, 196574), (133, 147800), (140, 140410), (152, 129325), (175, 112328), (190, 103460), (200, 98287), (266, 73900), (280, 70205), (350, 56164), (380, 51730), (475, 41384), (532, 36950), (665, 29560), (700, 28082), (739, 26600), (760, 25865), (950, 20692), (1064, 18475), (1330, 14780), (1400, 14041), (1478, 13300), (1900, 10346), (2660, 7390), (2956, 6650), (3325, 5912), (3695, 5320), (3800, 5173)]