78839120

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{6277}}^1$

素因数の和:6447

約数の個数: 40

約数和(自身を含む): 184497864

約数和(自身を除く): 105658744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6277, 6280, 12554, 12560, 25108, 31385, 50216, 62770, 100432, 125540, 251080, 502160, 985489, 1970978, 3941956, 4927445, 7883912, 9854890, 15767824, 19709780, 39419560, 78839120]

約数ペア:

[(1, 78839120), (2, 39419560), (4, 19709780), (5, 15767824), (8, 9854890), (10, 7883912), (16, 4927445), (20, 3941956), (40, 1970978), (80, 985489), (157, 502160), (314, 251080), (628, 125540), (785, 100432), (1256, 62770), (1570, 50216), (2512, 31385), (3140, 25108), (6277, 12560), (6280, 12554)]