77977700

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^2\times {\mathrm{353}}^1$

素因数の和:461

約数の個数: 54

約数和(自身を含む): 173378226

約数和(自身を除く): 95400526

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 188, 235, 353, 470, 706, 940, 1175, 1412, 1765, 2209, 2350, 3530, 4418, 4700, 7060, 8825, 8836, 11045, 16591, 17650, 22090, 33182, 35300, 44180, 55225, 66364, 82955, 110450, 165910, 220900, 331820, 414775, 779777, 829550, 1559554, 1659100, 3119108, 3898885, 7797770, 15595540, 19494425, 38988850, 77977700]

約数ペア:

[(1, 77977700), (2, 38988850), (4, 19494425), (5, 15595540), (10, 7797770), (20, 3898885), (25, 3119108), (47, 1659100), (50, 1559554), (94, 829550), (100, 779777), (188, 414775), (235, 331820), (353, 220900), (470, 165910), (706, 110450), (940, 82955), (1175, 66364), (1412, 55225), (1765, 44180), (2209, 35300), (2350, 33182), (3530, 22090), (4418, 17650), (4700, 16591), (7060, 11045), (8825, 8836)]