19355380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{907}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 44847936

約数和(自身を除く): 25492556

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 907, 970, 1067, 1814, 1940, 2134, 3628, 4268, 4535, 5335, 9070, 9977, 10670, 18140, 19954, 21340, 39908, 49885, 87979, 99770, 175958, 199540, 351916, 439895, 879790, 967769, 1759580, 1935538, 3871076, 4838845, 9677690, 19355380]

約数ペア:

[(1, 19355380), (2, 9677690), (4, 4838845), (5, 3871076), (10, 1935538), (11, 1759580), (20, 967769), (22, 879790), (44, 439895), (55, 351916), (97, 199540), (110, 175958), (194, 99770), (220, 87979), (388, 49885), (485, 39908), (907, 21340), (970, 19954), (1067, 18140), (1814, 10670), (1940, 9977), (2134, 9070), (3628, 5335), (4268, 4535)]