20816460

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5507}}^1$

素因数の和:5532

約数の個数: 96

約数和(自身を含む): 74027520

約数和(自身を除く): 53211060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5507, 11014, 16521, 22028, 27535, 33042, 38549, 49563, 55070, 66084, 77098, 82605, 99126, 110140, 115647, 148689, 154196, 165210, 192745, 198252, 231294, 247815, 297378, 330420, 346941, 385490, 462588, 495630, 578235, 594756, 693882, 743445, 770980, 991260, 1040823, 1156470, 1387764, 1486890, 1734705, 2081646, 2312940, 2973780, 3469410, 4163292, 5204115, 6938820, 10408230, 20816460]

約数ペア:

[(1, 20816460), (2, 10408230), (3, 6938820), (4, 5204115), (5, 4163292), (6, 3469410), (7, 2973780), (9, 2312940), (10, 2081646), (12, 1734705), (14, 1486890), (15, 1387764), (18, 1156470), (20, 1040823), (21, 991260), (27, 770980), (28, 743445), (30, 693882), (35, 594756), (36, 578235), (42, 495630), (45, 462588), (54, 385490), (60, 346941), (63, 330420), (70, 297378), (84, 247815), (90, 231294), (105, 198252), (108, 192745), (126, 165210), (135, 154196), (140, 148689), (180, 115647), (189, 110140), (210, 99126), (252, 82605), (270, 77098), (315, 66084), (378, 55070), (420, 49563), (540, 38549), (630, 33042), (756, 27535), (945, 22028), (1260, 16521), (1890, 11014), (3780, 5507)]