20067800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5281}}^1$

素因数の和:5316

約数の個数: 48

約数和(自身を含む): 49122600

約数和(自身を除く): 29054800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5281, 10562, 21124, 26405, 42248, 52810, 100339, 105620, 132025, 200678, 211240, 264050, 401356, 501695, 528100, 802712, 1003390, 1056200, 2006780, 2508475, 4013560, 5016950, 10033900, 20067800]

約数ペア:

[(1, 20067800), (2, 10033900), (4, 5016950), (5, 4013560), (8, 2508475), (10, 2006780), (19, 1056200), (20, 1003390), (25, 802712), (38, 528100), (40, 501695), (50, 401356), (76, 264050), (95, 211240), (100, 200678), (152, 132025), (190, 105620), (200, 100339), (380, 52810), (475, 42248), (760, 26405), (950, 21124), (1900, 10562), (3800, 5281)]