77863040

素因数分解:

$2^7\times 5^1\times {\mathrm{121661}}^1$

素因数の和:121680

約数の個数: 32

約数和(自身を含む): 186142860

約数和(自身を除く): 108279820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 121661, 243322, 486644, 608305, 973288, 1216610, 1946576, 2433220, 3893152, 4866440, 7786304, 9732880, 15572608, 19465760, 38931520, 77863040]

約数ペア:

[(1, 77863040), (2, 38931520), (4, 19465760), (5, 15572608), (8, 9732880), (10, 7786304), (16, 4866440), (20, 3893152), (32, 2433220), (40, 1946576), (64, 1216610), (80, 973288), (128, 608305), (160, 486644), (320, 243322), (640, 121661)]