20694800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:433

約数の個数: 120

約数和(自身を含む): 59966400

約数和(自身を除く): 39271600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 25, 28, 35, 38, 40, 50, 56, 70, 76, 80, 95, 100, 112, 133, 140, 152, 175, 190, 200, 266, 280, 304, 350, 380, 389, 400, 475, 532, 560, 665, 700, 760, 778, 950, 1064, 1330, 1400, 1520, 1556, 1900, 1945, 2128, 2660, 2723, 2800, 3112, 3325, 3800, 3890, 5320, 5446, 6224, 6650, 7391, 7600, 7780, 9725, 10640, 10892, 13300, 13615, 14782, 15560, 19450, 21784, 26600, 27230, 29564, 31120, 36955, 38900, 43568, 51737, 53200, 54460, 59128, 68075, 73910, 77800, 103474, 108920, 118256, 136150, 147820, 155600, 184775, 206948, 217840, 258685, 272300, 295640, 369550, 413896, 517370, 544600, 591280, 739100, 827792, 1034740, 1089200, 1293425, 1478200, 2069480, 2586850, 2956400, 4138960, 5173700, 10347400, 20694800]

約数ペア:

[(1, 20694800), (2, 10347400), (4, 5173700), (5, 4138960), (7, 2956400), (8, 2586850), (10, 2069480), (14, 1478200), (16, 1293425), (19, 1089200), (20, 1034740), (25, 827792), (28, 739100), (35, 591280), (38, 544600), (40, 517370), (50, 413896), (56, 369550), (70, 295640), (76, 272300), (80, 258685), (95, 217840), (100, 206948), (112, 184775), (133, 155600), (140, 147820), (152, 136150), (175, 118256), (190, 108920), (200, 103474), (266, 77800), (280, 73910), (304, 68075), (350, 59128), (380, 54460), (389, 53200), (400, 51737), (475, 43568), (532, 38900), (560, 36955), (665, 31120), (700, 29564), (760, 27230), (778, 26600), (950, 21784), (1064, 19450), (1330, 15560), (1400, 14782), (1520, 13615), (1556, 13300), (1900, 10892), (1945, 10640), (2128, 9725), (2660, 7780), (2723, 7600), (2800, 7391), (3112, 6650), (3325, 6224), (3800, 5446), (3890, 5320)]