76720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{137}}^1$

素因数の和:157

約数の個数: 40

約数和(自身を含む): 205344

約数和(自身を除く): 128624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 137, 140, 274, 280, 548, 560, 685, 959, 1096, 1370, 1918, 2192, 2740, 3836, 4795, 5480, 7672, 9590, 10960, 15344, 19180, 38360, 76720]

約数ペア:

[(1, 76720), (2, 38360), (4, 19180), (5, 15344), (7, 10960), (8, 9590), (10, 7672), (14, 5480), (16, 4795), (20, 3836), (28, 2740), (35, 2192), (40, 1918), (56, 1370), (70, 1096), (80, 959), (112, 685), (137, 560), (140, 548), (274, 280)]