813363400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{214043}}^1$

素因数の和:214078

約数の個数: 48

約数和(自身を含む): 1990609200

約数和(自身を除く): 1177245800

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, 214043, 428086, 856172, 1070215, 1712344, 2140430, 4066817, 4280860, 5351075, 8133634, 8561720, 10702150, 16267268, 20334085, 21404300, 32534536, 40668170, 42808600, 81336340, 101670425, 162672680, 203340850, 406681700, 813363400]

約数ペア:

[(1, 813363400), (2, 406681700), (4, 203340850), (5, 162672680), (8, 101670425), (10, 81336340), (19, 42808600), (20, 40668170), (25, 32534536), (38, 21404300), (40, 20334085), (50, 16267268), (76, 10702150), (95, 8561720), (100, 8133634), (152, 5351075), (190, 4280860), (200, 4066817), (380, 2140430), (475, 1712344), (760, 1070215), (950, 856172), (1900, 428086), (3800, 214043)]