28643440

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{7307}}^1$

素因数の和:7334

約数の個数: 60

約数和(自身を含む): 77479416

約数和(自身を除く): 48835976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 7307, 14614, 29228, 36535, 51149, 58456, 73070, 102298, 116912, 146140, 204596, 255745, 292280, 358043, 409192, 511490, 584560, 716086, 818384, 1022980, 1432172, 1790215, 2045960, 2864344, 3580430, 4091920, 5728688, 7160860, 14321720, 28643440]

約数ペア:

[(1, 28643440), (2, 14321720), (4, 7160860), (5, 5728688), (7, 4091920), (8, 3580430), (10, 2864344), (14, 2045960), (16, 1790215), (20, 1432172), (28, 1022980), (35, 818384), (40, 716086), (49, 584560), (56, 511490), (70, 409192), (80, 358043), (98, 292280), (112, 255745), (140, 204596), (196, 146140), (245, 116912), (280, 102298), (392, 73070), (490, 58456), (560, 51149), (784, 36535), (980, 29228), (1960, 14614), (3920, 7307)]