819760340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{29723}}^1$

素因数の和:29936

約数の個数: 48

約数和(自身を含む): 1977478272

約数和(自身を除く): 1157717932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2758, 3940, 5516, 6895, 13790, 27580, 29723, 59446, 118892, 148615, 208061, 297230, 416122, 594460, 832244, 1040305, 2080610, 4161220, 5855431, 11710862, 23421724, 29277155, 40988017, 58554310, 81976034, 117108620, 163952068, 204940085, 409880170, 819760340]

約数ペア:

[(1, 819760340), (2, 409880170), (4, 204940085), (5, 163952068), (7, 117108620), (10, 81976034), (14, 58554310), (20, 40988017), (28, 29277155), (35, 23421724), (70, 11710862), (140, 5855431), (197, 4161220), (394, 2080610), (788, 1040305), (985, 832244), (1379, 594460), (1970, 416122), (2758, 297230), (3940, 208061), (5516, 148615), (6895, 118892), (13790, 59446), (27580, 29723)]