81779990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{11633}}^1$

素因数の和:11696

約数の個数: 32

約数和(自身を含む): 159153120

約数和(自身を除く): 77373130

約数列:

[1, 2, 5, 10, 19, 37, 38, 74, 95, 185, 190, 370, 703, 1406, 3515, 7030, 11633, 23266, 58165, 116330, 221027, 430421, 442054, 860842, 1105135, 2152105, 2210270, 4304210, 8177999, 16355998, 40889995, 81779990]

約数ペア:

[(1, 81779990), (2, 40889995), (5, 16355998), (10, 8177999), (19, 4304210), (37, 2210270), (38, 2152105), (74, 1105135), (95, 860842), (185, 442054), (190, 430421), (370, 221027), (703, 116330), (1406, 58165), (3515, 23266), (7030, 11633)]