20805930236

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{367}}^1\times {\mathrm{155747}}^1$

素因数の和:156138

約数の個数: 48

約数和(自身を含む): 44935166976

約数和(自身を除く): 24129236740

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 367, 734, 1468, 2569, 4771, 5138, 9542, 10276, 19084, 33397, 66794, 133588, 155747, 311494, 622988, 1090229, 2024711, 2180458, 4049422, 4360916, 8098844, 14172977, 28345954, 56691908, 57159149, 114318298, 228636596, 400114043, 743068937, 800228086, 1486137874, 1600456172, 2972275748, 5201482559, 10402965118, 20805930236]

約数ペア:

[(1, 20805930236), (2, 10402965118), (4, 5201482559), (7, 2972275748), (13, 1600456172), (14, 1486137874), (26, 800228086), (28, 743068937), (52, 400114043), (91, 228636596), (182, 114318298), (364, 57159149), (367, 56691908), (734, 28345954), (1468, 14172977), (2569, 8098844), (4771, 4360916), (5138, 4049422), (9542, 2180458), (10276, 2024711), (19084, 1090229), (33397, 622988), (66794, 311494), (133588, 155747)]