81692940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{194507}}^1$

素因数の和:194526

約数の個数: 48

約数和(自身を含む): 261418752

約数和(自身を除く): 179725812

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 194507, 389014, 583521, 778028, 972535, 1167042, 1361549, 1945070, 2334084, 2723098, 2917605, 3890140, 4084647, 5446196, 5835210, 6807745, 8169294, 11670420, 13615490, 16338588, 20423235, 27230980, 40846470, 81692940]

約数ペア:

[(1, 81692940), (2, 40846470), (3, 27230980), (4, 20423235), (5, 16338588), (6, 13615490), (7, 11670420), (10, 8169294), (12, 6807745), (14, 5835210), (15, 5446196), (20, 4084647), (21, 3890140), (28, 2917605), (30, 2723098), (35, 2334084), (42, 1945070), (60, 1361549), (70, 1167042), (84, 972535), (105, 778028), (140, 583521), (210, 389014), (420, 194507)]