809765740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{14869}}^1$

素因数の和:15274

約数の個数: 48

約数和(自身を含む): 1948564800

約数和(自身を除く): 1138799060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 778, 1556, 1945, 2723, 3890, 5446, 7780, 10892, 13615, 14869, 27230, 29738, 54460, 59476, 74345, 104083, 148690, 208166, 297380, 416332, 520415, 1040830, 2081660, 5784041, 11568082, 23136164, 28920205, 40488287, 57840410, 80976574, 115680820, 161953148, 202441435, 404882870, 809765740]

約数ペア:

[(1, 809765740), (2, 404882870), (4, 202441435), (5, 161953148), (7, 115680820), (10, 80976574), (14, 57840410), (20, 40488287), (28, 28920205), (35, 23136164), (70, 11568082), (140, 5784041), (389, 2081660), (778, 1040830), (1556, 520415), (1945, 416332), (2723, 297380), (3890, 208166), (5446, 148690), (7780, 104083), (10892, 74345), (13615, 59476), (14869, 54460), (27230, 29738)]