77897440

素因数分解:

$2^5\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2549}}^1$

素因数の和:2755

約数の個数: 48

約数和(自身を含む): 185068800

約数和(自身を除く): 107171360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 191, 382, 764, 955, 1528, 1910, 2549, 3056, 3820, 5098, 6112, 7640, 10196, 12745, 15280, 20392, 25490, 30560, 40784, 50980, 81568, 101960, 203920, 407840, 486859, 973718, 1947436, 2434295, 3894872, 4868590, 7789744, 9737180, 15579488, 19474360, 38948720, 77897440]

約数ペア:

[(1, 77897440), (2, 38948720), (4, 19474360), (5, 15579488), (8, 9737180), (10, 7789744), (16, 4868590), (20, 3894872), (32, 2434295), (40, 1947436), (80, 973718), (160, 486859), (191, 407840), (382, 203920), (764, 101960), (955, 81568), (1528, 50980), (1910, 40784), (2549, 30560), (3056, 25490), (3820, 20392), (5098, 15280), (6112, 12745), (7640, 10196)]