20020240280

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{34501}}^1$

素因数の和:34764

約数の個数: 64

約数和(自身を含む): 45832456800

約数和(自身を除く): 25812216520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 163, 178, 326, 356, 445, 652, 712, 815, 890, 1304, 1630, 1780, 3260, 3560, 6520, 14507, 29014, 34501, 58028, 69002, 72535, 116056, 138004, 145070, 172505, 276008, 290140, 345010, 580280, 690020, 1380040, 3070589, 5623663, 6141178, 11247326, 12282356, 15352945, 22494652, 24564712, 28118315, 30705890, 44989304, 56236630, 61411780, 112473260, 122823560, 224946520, 500506007, 1001012014, 2002024028, 2502530035, 4004048056, 5005060070, 10010120140, 20020240280]

約数ペア:

[(1, 20020240280), (2, 10010120140), (4, 5005060070), (5, 4004048056), (8, 2502530035), (10, 2002024028), (20, 1001012014), (40, 500506007), (89, 224946520), (163, 122823560), (178, 112473260), (326, 61411780), (356, 56236630), (445, 44989304), (652, 30705890), (712, 28118315), (815, 24564712), (890, 22494652), (1304, 15352945), (1630, 12282356), (1780, 11247326), (3260, 6141178), (3560, 5623663), (6520, 3070589), (14507, 1380040), (29014, 690020), (34501, 580280), (58028, 345010), (69002, 290140), (72535, 276008), (116056, 172505), (138004, 145070)]