20804948380

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1283}}^1\times {\mathrm{4201}}^1$

素因数の和:5686

約数の個数: 48

約数和(自身を含む): 43961458464

約数和(自身を除く): 23156510084

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1283, 1930, 2566, 3860, 4201, 5132, 6415, 8402, 12830, 16804, 21005, 25660, 42010, 84020, 247619, 495238, 810793, 990476, 1238095, 1621586, 2476190, 3243172, 4053965, 4952380, 5389883, 8107930, 10779766, 16215860, 21559532, 26949415, 53898830, 107797660, 1040247419, 2080494838, 4160989676, 5201237095, 10402474190, 20804948380]

約数ペア:

[(1, 20804948380), (2, 10402474190), (4, 5201237095), (5, 4160989676), (10, 2080494838), (20, 1040247419), (193, 107797660), (386, 53898830), (772, 26949415), (965, 21559532), (1283, 16215860), (1930, 10779766), (2566, 8107930), (3860, 5389883), (4201, 4952380), (5132, 4053965), (6415, 3243172), (8402, 2476190), (12830, 1621586), (16804, 1238095), (21005, 990476), (25660, 810793), (42010, 495238), (84020, 247619)]