156877520

素因数分解:

$2^4\times 5^1\times {\mathrm{1960969}}^1$

素因数の和:1960982

約数の個数: 20

約数和(自身を含む): 364740420

約数和(自身を除く): 207862900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1960969, 3921938, 7843876, 9804845, 15687752, 19609690, 31375504, 39219380, 78438760, 156877520]

約数ペア:

[(1, 156877520), (2, 78438760), (4, 39219380), (5, 31375504), (8, 19609690), (10, 15687752), (16, 9804845), (20, 7843876), (40, 3921938), (80, 1960969)]