77545720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{276949}}^1$

素因数の和:276967

約数の個数: 32

約数和(自身を含む): 199404000

約数和(自身を除く): 121858280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 276949, 553898, 1107796, 1384745, 1938643, 2215592, 2769490, 3877286, 5538980, 7754572, 9693215, 11077960, 15509144, 19386430, 38772860, 77545720]

約数ペア:

[(1, 77545720), (2, 38772860), (4, 19386430), (5, 15509144), (7, 11077960), (8, 9693215), (10, 7754572), (14, 5538980), (20, 3877286), (28, 2769490), (35, 2215592), (40, 1938643), (56, 1384745), (70, 1107796), (140, 553898), (280, 276949)]