78391400

素因数分解:

$2^3\times 5^2\times {\mathrm{137}}^1\times {\mathrm{2861}}^1$

素因数の和:3014

約数の個数: 48

約数和(自身を含む): 183654540

約数和(自身を除く): 105263140

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 137, 200, 274, 548, 685, 1096, 1370, 2740, 2861, 3425, 5480, 5722, 6850, 11444, 13700, 14305, 22888, 27400, 28610, 57220, 71525, 114440, 143050, 286100, 391957, 572200, 783914, 1567828, 1959785, 3135656, 3919570, 7839140, 9798925, 15678280, 19597850, 39195700, 78391400]

約数ペア:

[(1, 78391400), (2, 39195700), (4, 19597850), (5, 15678280), (8, 9798925), (10, 7839140), (20, 3919570), (25, 3135656), (40, 1959785), (50, 1567828), (100, 783914), (137, 572200), (200, 391957), (274, 286100), (548, 143050), (685, 114440), (1096, 71525), (1370, 57220), (2740, 28610), (2861, 27400), (3425, 22888), (5480, 14305), (5722, 13700), (6850, 11444)]