19245380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12497}}^1$

素因数の和:12524

約数の個数: 48

約数和(自身を含む): 50391936

約数和(自身を除く): 31146556

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12497, 24994, 49988, 62485, 87479, 124970, 137467, 174958, 249940, 274934, 349916, 437395, 549868, 687335, 874790, 962269, 1374670, 1749580, 1924538, 2749340, 3849076, 4811345, 9622690, 19245380]

約数ペア:

[(1, 19245380), (2, 9622690), (4, 4811345), (5, 3849076), (7, 2749340), (10, 1924538), (11, 1749580), (14, 1374670), (20, 962269), (22, 874790), (28, 687335), (35, 549868), (44, 437395), (55, 349916), (70, 274934), (77, 249940), (110, 174958), (140, 137467), (154, 124970), (220, 87479), (308, 62485), (385, 49988), (770, 24994), (1540, 12497)]