80307940

素因数分解:

$2^2\times 5^1\times {\mathrm{1579}}^1\times {\mathrm{2543}}^1$

素因数の和:4131

約数の個数: 24

約数和(自身を含む): 168819840

約数和(自身を除く): 88511900

約数列:

[1, 2, 4, 5, 10, 20, 1579, 2543, 3158, 5086, 6316, 7895, 10172, 12715, 15790, 25430, 31580, 50860, 4015397, 8030794, 16061588, 20076985, 40153970, 80307940]

約数ペア:

[(1, 80307940), (2, 40153970), (4, 20076985), (5, 16061588), (10, 8030794), (20, 4015397), (1579, 50860), (2543, 31580), (3158, 25430), (5086, 15790), (6316, 12715), (7895, 10172)]